diff --git a/README.md b/README.md
index eebe234..5f377da 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,31 @@ npm run start
 
 - Visit http://localhost:8787/?url=https://jats.nlm.nih.gov/publishing/tag-library/1.1/FullArticleSamples/bmj_sample.xml
 
+## Programmatic API (Node.js)
+
+Use `compile` from `xjslt/compile` to build a transform function directly in
+Node.js without writing any files to disk. The stylesheet is passed as a parsed
+document, and the returned function can be called immediately.
+
+```ts
+import * as slimdom from "slimdom";
+import { readFileSync } from "fs";
+import { compile } from "xjslt/compile";
+
+const stylesheetPath = "jats-html.xsl";
+const xslt = slimdom.parseXmlDocument(readFileSync(stylesheetPath, "utf-8"));
+const transform = compile(xslt);
+
+// Transform an XML document
+const input = slimdom.parseXmlDocument(readFileSync("article.xml", "utf-8"));
+const results = transform(input);
+const resultDocument = results.get("#default");
+
+const xml = slimdom.serializeToWellFormedString(resultDocument);
+
+console.log(xml);
+```
+
 # Supported features
 
 All core features of XSLT 2.0. Roughly 50% of tests in the XSLT test suite (https://github.com/w3c/xslt30-test) pass - but many of these tests are for edge cases.
@@ -125,7 +150,7 @@ The test suite includes both unit tests and a subset of the [W3C XSLT 3.0 test s
 npm install
 ```
 
-and then run:
+and then run tests:
 
 ```
 npm test
diff --git a/package.json b/package.json
index ef35828..bf5cd1c 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,10 @@
     "COPYING.LESSER"
   ],
   "main": "./dist/xjslt.js",
-  "exports": "./dist/xjslt.js",
+  "exports": {
+    ".": "./dist/xjslt.js",
+    "./compile": "./dist/compile.js"
+  },
   "types": "./dist/xjslt.d.ts",
   "bin": {
     "xjslt": "./dist/cli.js"
diff --git a/src/cli.ts b/src/cli.ts
index b5f1cd3..c7f09fe 100755
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -21,14 +21,13 @@
 
 import * as slimdom from "slimdom";
 import { Command, Option } from "commander";
-import { buildStylesheet, compileStylesheet } from "./compile";
+import { compileFromPath, compileToFile } from "./compile";
 import { serialize } from "./xjslt";
-import { access, constants, readFile, writeFile } from "fs/promises";
+import { readFile, writeFile } from "fs/promises";
 import { pathToFileURL } from "url";
 import { webpack } from "webpack";
 import * as url from "url";
 import * as path from "path";
-import * as fs from "fs";
 import * as process from "process";
 
 async function processXml(xml: string, transform, options: object) {
@@ -61,7 +60,7 @@ async function run(xslt: string, xmls: Array<string>, options: object) {
     let tmp = require(path.resolve(xslt));
     transform = tmp.transform;
   } else {
-    transform = buildStylesheet(xslt);
+    transform = await compileFromPath(xslt);
   }
   await Promise.all(xmls.map((xml) => processXml(xmls[0], transform, options)));
 }
@@ -122,7 +121,7 @@ function mkStandaloneConfig(src, destinationAbs) {
 
 async function compile(xslt: string, destination: string, options: object) {
   const destinationAbs = path.resolve(destination);
-  const src = compileStylesheet(xslt);
+  const src = await compileToFile(xslt);
   try {
     if (options["web"] || options["standalone"]) {
       const compiler = webpack(
diff --git a/src/compile.ts b/src/compile.ts
index 9f54723..d342b33 100644
--- a/src/compile.ts
+++ b/src/compile.ts
@@ -43,6 +43,7 @@ import {
   Statement,
 } from "estree";
 import * as slimdom from "slimdom";
+import * as xjslt from "./xjslt";
 import {
   compileXPathToJavaScript,
   evaluateXPath,
@@ -50,7 +51,8 @@ import {
   evaluateXPathToNodes,
 } from "fontoxpath";
 import { readFileSync, writeFileSync, symlinkSync } from "fs";
-import { pathToFileURL } from "url";
+import { readFile, symlink, writeFile } from "fs/promises";
+import { pathToFileURL, fileURLToPath } from "url";
 import * as path from "path";
 import { tmpdir } from "os";
 import { mkdtempSync } from "fs";
@@ -75,6 +77,7 @@ import {
   Rule,
   TemplateForCompilation,
   TemplateIndex,
+  StylesheetTransform,
 } from "./definitions";
 import {
   compareSortable,
@@ -592,17 +595,18 @@ function compileSimpleElement(node: slimdom.Element, context: CompileContext) {
 function compileChooseNode(node: slimdom.Element, context: CompileContext) {
   let alternatives = [];
   for (let childNode of node.childNodes) {
-    if (childNode instanceof slimdom.Element) {
-      if (childNode.localName === "when") {
+    if (childNode.nodeType === node.ELEMENT_NODE) {
+      const childElement = childNode as slimdom.Element;
+      if (childElement.localName === "when") {
         alternatives.push(
           toEstree({
-            test: hackXpath(childNode.getAttribute("test")),
+            test: hackXpath(childElement.getAttribute("test")),
             apply: mkArrowFun(
-              compileSequenceConstructor(childNode.childNodes, context),
+              compileSequenceConstructor(childElement.childNodes, context),
             ),
           }),
         );
-      } else if (childNode.localName === "otherwise") {
+      } else if (childElement.localName === "otherwise") {
         alternatives.push(
           toEstree({
             apply: mkArrowFun(
@@ -983,7 +987,7 @@ function compileValueOf(node: slimdom.Element, context: CompileContext) {
 }
 
 function compileTextNode(node: slimdom.Element) {
-  if (node instanceof slimdom.Element && node.childElementCount > 0) {
+  if (node.nodeType === node.ELEMENT_NODE && node.childElementCount > 0) {
     throw new Error("XTSE0010 element found as child of xsl:text");
   }
   return mkCallWithContext(mkMember("xjslt", "text"), [
@@ -1023,7 +1027,11 @@ function buildNamedTemplates(
   );
   return toEstree(retval);
 }
-export function compileStylesheetNode(node: slimdom.Element): Program {
+
+export function compileStylesheetNode(
+  node: slimdom.Element,
+  injectDeps = false,
+): Program {
   let context: CompileContext = {
     declarationCounter: 0,
     namedTemplates: new Map(),
@@ -1037,7 +1045,7 @@ export function compileStylesheetNode(node: slimdom.Element): Program {
     type: "Program",
     sourceType: "module",
     body: [
-      ...mkImportsNode(),
+      ...(injectDeps ? [] : mkImportsNode()),
       mkFun(
         mkIdentifier("transform"),
         [mkIdentifier("document"), mkIdentifier("params")],
@@ -1140,6 +1148,7 @@ export function compileStylesheetNode(node: slimdom.Element): Program {
               variableScopes: [mkNew(mkIdentifier("Map"), [])],
               inputURL: mkMember("params", "inputURL"),
               ruleTree: toEstree(buildRuleTree(context.rules)),
+              readDocument: mkMember("params", "readDocument"),
               keys: mkIdentifier("keys"),
               outputDefinitions: mkIdentifier("outputDefinitions"),
               decimalFormats: mkIdentifier("decimalFormats"),
@@ -1447,7 +1456,11 @@ function compileAvt(avt: string | null) {
   }
 }
 
-function preprocess(doc: slimdom.Document, path: string): slimdom.Document {
+function preprocess(
+  doc: slimdom.Document,
+  inputURL: URL,
+  readDocument: (uri: string) => slimdom.Document,
+): slimdom.Document {
   if (
     !evaluateXPathToBoolean(
       "/xsl:stylesheet|/xsl:transform",
@@ -1473,10 +1486,12 @@ function preprocess(doc: slimdom.Document, path: string): slimdom.Document {
     )
   ) {
     doc = preprocessInclude(doc, {
-      inputURL: pathToFileURL(path),
+      inputURL: inputURL,
+      readDocument: readDocument,
     }).get("#default").document;
     doc = preprocessImport(doc, {
-      inputURL: pathToFileURL(path),
+      inputURL: inputURL,
+      readDocument: readDocument,
       stylesheetParams: { "base-precedence": basePrecedence },
     }).get("#default").document;
     basePrecedence += 100;
@@ -1492,7 +1507,77 @@ function preprocess(doc: slimdom.Document, path: string): slimdom.Document {
   return doc;
 }
 
-export function compileStylesheet(xsltPath: string) {
+/**
+ * Compile an XSLT stylesheet document into a callable transform function.
+ *
+ * Unlike `compileToFile`, this API accepts an already-parsed document and
+ * executes the compiled JavaScript in-memory — no temporary files or symlinks
+ * are created.
+ *
+ * @param xslt - The XSLT stylesheet as a parsed slimdom Document.
+ * @param readDocument - Optional callback to resolve `xsl:include` /
+ *   `xsl:import` hrefs without touching the filesystem. Receives the resolved
+ *   URI (absolute when a base is known, otherwise the raw href) and must
+ *   return a parsed slimdom Document. Also used at runtime for `doc()` calls.
+ * @returns A transform function with the signature
+ *   `(document, params?) => Map<string, OutputResult>`.
+ *   The `"#default"` key holds the primary output document.
+ *
+ * @example
+ * ```ts
+ * import * as slimdom from "slimdom";
+ * import { compile } from "xjslt/compile";
+ * import { serialize } from "xjslt";
+ *
+ * const xslt = slimdom.parseXmlDocument(`
+ *   <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+ *     <xsl:template match="/">
+ *       <result><xsl:value-of select="/doc/title"/></result>
+ *     </xsl:template>
+ *   </xsl:stylesheet>
+ * `);
+ *
+ * const transform = await compile(xslt);
+ *
+ * const input = slimdom.parseXmlDocument("<doc><title>Hello</title></doc>");
+ * const output = transform(input).get("#default");
+ * console.log(serialize(output)); // <result>Hello</result>
+ * ```
+ */
+export function compile(
+  xslt: slimdom.Document,
+  readDocument?: (uri: string) => slimdom.Document,
+  inputURL?: URL,
+): StylesheetTransform {
+  const xsltDoc = preprocess(xslt, inputURL, readDocument);
+  const code = generate(compileStylesheetNode(xsltDoc.documentElement, true));
+  const m: { exports: { transform?: StylesheetTransform } } = { exports: {} };
+  new Function("xjslt", "module", code)(xjslt, m);
+  return m.exports.transform;
+}
+
+function mkFsReadDocument(): (uri: string) => slimdom.Document {
+  return (uri: string) => {
+    if (uri.startsWith("file:")) {
+      return slimdom.parseXmlDocument(
+        readFileSync(fileURLToPath(new URL(uri))).toString(),
+      );
+    }
+    throw new Error(`FODC0005: document ${uri} not found`);
+  };
+}
+
+async function readAndParseXml(path: string): Promise<slimdom.Document> {
+  const str = (await readFile(path)).toString();
+  return slimdom.parseXmlDocument(str);
+}
+
+function readAndParseXmlSync(path: string): slimdom.Document {
+  const str = readFileSync(path).toString();
+  return slimdom.parseXmlDocument(str);
+}
+
+export async function compileToFile(xsltPath: string) {
   let slimdom_path = require.resolve("slimdom").split(path.sep);
   let root_dir = path.join(
     "/",
@@ -1509,11 +1594,13 @@ export function compileStylesheet(xsltPath: string) {
   );
   symlinkSync(path.join(root_dir, "dist"), path.join(tempdir, "dist"));
   var tempfile = path.join(tempdir, "transform.js");
-  let xsltDoc = preprocess(
-    slimdom.parseXmlDocument(readFileSync(xsltPath).toString()),
-    xsltPath,
+  const xsltURL = pathToFileURL(xsltPath);
+  const xsltDoc = await preprocess(
+    await readAndParseXml(xsltPath),
+    xsltURL,
+    mkFsReadDocument(),
   );
-  writeFileSync(
+  await writeFile(
     tempfile,
     generate(compileStylesheetNode(xsltDoc.documentElement)),
   );
@@ -1525,9 +1612,20 @@ export function compileStylesheet(xsltPath: string) {
  * Build a stylesheet. Returns a function that will take an input DOM
  * document and return an output DOM document.
  */
-export function buildStylesheet(xsltPath: string) {
-  const tempfile = compileStylesheet(xsltPath);
-  let transform = require(tempfile);
-  // console.log(readFileSync(tempfile).toString());
-  return transform.transform;
+export async function compileFromPath(
+  xsltPath: string,
+): Promise<StylesheetTransform> {
+  return compile(
+    await readAndParseXml(xsltPath),
+    mkFsReadDocument(),
+    pathToFileURL(xsltPath),
+  );
+}
+
+export function compileFromPathSync(xsltPath: string): StylesheetTransform {
+  return compile(
+    readAndParseXmlSync(xsltPath),
+    mkFsReadDocument(),
+    pathToFileURL(xsltPath),
+  );
 }
diff --git a/src/definitions.ts b/src/definitions.ts
index 1c3a0d9..ccc81e3 100644
--- a/src/definitions.ts
+++ b/src/definitions.ts
@@ -166,6 +166,7 @@ export interface TransformParams {
   outputDocument?: slimdom.Document;
   outputNode?: slimdom.Node;
   inputURL?: string;
+  readDocument?: (uri: string) => slimdom.Document;
   initialMode?: string;
   stylesheetParams?: object;
 }
@@ -191,6 +192,16 @@ export type OutputResult = OutputDefinition & {
   document: slimdom.Document;
 };
 
+export interface TransformResultMap extends Map<string, OutputResult> {
+  get(key: "#default"): OutputResult;
+  get(key: string): OutputResult | undefined;
+}
+
+export type StylesheetTransform = (
+  document: slimdom.Document,
+  params?: TransformParams,
+) => TransformResultMap;
+
 export type Appender = (content: any) => Appender | undefined;
 
 export interface DynamicContext {
@@ -202,6 +213,7 @@ export interface DynamicContext {
   variableScopes: Array<VariableScope>;
   nextMatches?: Generator<Template>;
   inputURL: URL;
+  readDocument: (uri: string) => slimdom.Document;
   currentGroup?: NodeGroup;
   keys: Map<String, Key>;
   patternMatchCache: PatternMatchCache;
diff --git a/src/preprocess/attribute-set.js b/src/preprocess/attribute-set.js
index 94b6844..5e2d167 100644
--- a/src/preprocess/attribute-set.js
+++ b/src/preprocess/attribute-set.js
@@ -1,6 +1,6 @@
 (() => {
   var t = {
-      999(t, e, n) {
+      144(t, e, n) {
         (n(898), n(594));
         let o = n(821);
         function r(t, e) {
@@ -418,6 +418,7 @@
                   },
                 },
               },
+              readDocument: e.readDocument,
               keys: r,
               outputDefinitions: a,
               decimalFormats: s,
@@ -807,20 +808,20 @@
               if (0 === o.length) throw new R();
               const s = o.reverse();
               if (0 == s.length || s.length > 4) throw new R();
-              (j(m, s[0], e, n),
-                s[1] && j(d, s[1], e, n),
-                s[2] && j(f, s[2], e, n),
-                s[3] && j(x, s[3], e, n));
+              (O(m, s[0], e, n),
+                s[1] && O(d, s[1], e, n),
+                s[2] && O(f, s[2], e, n),
+                s[3] && O(x, s[3], e, n));
             }
           }
           var r, a;
         }
-        function O(t, e, n) {
+        function j(t, e, n) {
           "attribute" === e
             ? n.push(new w(t, l.Node.ATTRIBUTE_NODE))
             : n.push(new w(t, l.Node.ELEMENT_NODE));
         }
-        function j(t, e, n, o) {
+        function O(t, e, n, o) {
           var r, a;
           const s =
             null === (r = S(e, "xpathAxis")) || void 0 === r
@@ -831,7 +832,7 @@
           for (const r of e.childNodes.slice(1)) {
             if (!y(r)) continue;
             const i = r.localName;
-            if ("nameTest" === i) (P(t, e, n, o), O(t, s, n));
+            if ("nameTest" === i) (P(t, e, n, o), j(t, s, n));
             else if ("Wildcard" === i) {
               const e = S(r, "NCName");
               if (e) {
@@ -842,7 +843,7 @@
                 if (!r) throw new R(`unresolved ns prefix: ${r}`);
                 n.push(new g(t, r));
               }
-              O(t, s, n);
+              j(t, s, n);
             } else if ("piTest" === i) {
               n.push(new w(t, l.Node.PROCESSING_INSTRUCTION_NODE));
               const e = S(r, "piTarget");
@@ -1759,78 +1760,13 @@
       },
       472(t, e, n) {
         "use strict";
-        var o,
-          r =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (t, e, n, o) {
-                  void 0 === o && (o = n);
-                  var r = Object.getOwnPropertyDescriptor(e, n);
-                  ((r &&
-                    !("get" in r
-                      ? !e.__esModule
-                      : r.writable || r.configurable)) ||
-                    (r = {
-                      enumerable: !0,
-                      get: function () {
-                        return e[n];
-                      },
-                    }),
-                    Object.defineProperty(t, o, r));
-                }
-              : function (t, e, n, o) {
-                  (void 0 === o && (o = n), (t[o] = e[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (t, e) {
-                  Object.defineProperty(t, "default", {
-                    enumerable: !0,
-                    value: e,
-                  });
-                }
-              : function (t, e) {
-                  t.default = e;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((o = function (t) {
-              return (
-                (o =
-                  Object.getOwnPropertyNames ||
-                  function (t) {
-                    var e = [];
-                    for (var n in t)
-                      Object.prototype.hasOwnProperty.call(t, n) &&
-                        (e[e.length] = n);
-                    return e;
-                  }),
-                o(t)
-              );
-            }),
-            function (t) {
-              if (t && t.__esModule) return t;
-              var e = {};
-              if (null != t)
-                for (var n = o(t), s = 0; s < n.length; s++)
-                  "default" !== n[s] && r(e, t, n[s]);
-              return (a(e, t), e);
-            });
         (Object.defineProperty(e, "__esModule", { value: !0 }),
           (e.urlToDom = function (t, e) {
-            const n = t.inputURL ? (0, i.resolve)(t.inputURL.toString(), e) : e;
-            return n.startsWith("file:")
-              ? u.parseXmlDocument(
-                  (0, c.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!t.readDocument) return;
+            const n = t.inputURL ? (0, o.resolve)(t.inputURL.toString(), e) : e;
+            return t.readDocument(n);
           }));
-        const i = n(16),
-          c = n(896),
-          u = s(n(898));
+        const o = n(16);
       },
       821(t, e, n) {
         "use strict";
@@ -1933,14 +1869,14 @@
                 );
             }
           }),
-          (e.sort = j),
+          (e.sort = O),
           (e.applyTemplates = function (t, e) {
             const n = (0, p.mkResolver)(e.namespaces),
               o = (0, i.evaluateXPathToNodes)(
                 e.select,
                 t.contextItem,
                 void 0,
-                M(t.variableScopes),
+                _(t.variableScopes),
                 {
                   currentContext: t,
                   namespaceResolver: n,
@@ -1949,7 +1885,7 @@
               );
             let r = e.mode || "#default";
             ("#current" === r && (r = t.mode),
-              I(j(t, o, e.sortKeyComponents, n), t, (t) => {
+              I(O(t, o, e.sortKeyComponents, n), t, (t) => {
                 S(
                   Object.assign(Object.assign({}, t), {
                     mode: r,
@@ -2022,7 +1958,7 @@
               e.select,
               t.contextItem,
               void 0,
-              M(t.variableScopes),
+              _(t.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: t,
@@ -2046,15 +1982,15 @@
             t.append(Y(t, n, (0, p.mkResolver)(e.namespaces), [""]));
           }),
           (e.variable = function (t, e) {
-            _(t.variableScopes, e.name, B(t, e));
+            M(t.variableScopes, e.name, B(t, e));
           }),
           (e.param = function (t, e) {
-            _(t.variableScopes, e.name, t.stylesheetParams[e.name] || B(t, e));
+            M(t.variableScopes, e.name, t.stylesheetParams[e.name] || B(t, e));
           }),
           (e.extendScope = $),
           (e.wrapValue = L),
-          (e.setVariable = _),
-          (e.mergeVariableScopes = M),
+          (e.setVariable = M),
+          (e.mergeVariableScopes = _),
           (e.literalText = function (t, e) {
             t.append(e);
           }),
@@ -2063,7 +1999,7 @@
               e.select,
               t.contextItem,
               void 0,
-              M(t.variableScopes),
+              _(t.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: t,
@@ -2094,13 +2030,16 @@
           (e.attribute = function (t, e, n) {
             const o = (0, p.mkResolver)(e.namespaces),
               r = G(t, e.name, o),
-              [a, s] = (0, p.determineNamespace)(r, o, G(t, e.namespace, o)),
-              i = U(t, {
+              a = G(t, e.namespace, o),
+              [s, i] = r.includes(":")
+                ? (0, p.determineNamespace)(r, o, a)
+                : [a, r],
+              c = U(t, {
                 name: r,
-                namespace: a,
+                namespace: s,
                 value: Y(t, e.select || n, o, e.separator),
               });
-            t.append(i);
+            t.append(c);
           }),
           (e.processingInstruction = function (t, e, n) {
             const o = G(t, e.name, (0, p.mkResolver)(e.namespaces)),
@@ -2151,7 +2090,7 @@
               e.test,
               t.contextItem,
               void 0,
-              M(t.variableScopes),
+              _(t.variableScopes),
               {
                 currentContext: t,
                 namespaceResolver: (0, p.mkResolver)(e.namespaces),
@@ -2167,7 +2106,7 @@
                   n.test,
                   t.contextItem,
                   void 0,
-                  M(t.variableScopes),
+                  _(t.variableScopes),
                   {
                     currentContext: t,
                     functionNameResolver: u.functionNameResolver,
@@ -2199,7 +2138,7 @@
                 e.select,
                 t.contextItem,
                 void 0,
-                M(t.variableScopes),
+                _(t.variableScopes),
                 i.evaluateXPath.ALL_RESULTS_TYPE,
                 {
                   currentContext: t,
@@ -2208,7 +2147,7 @@
                 },
               );
             if (o && Symbol.iterator in Object(o)) {
-              const r = j(t, o, e.sortKeyComponents, n);
+              const r = O(t, o, e.sortKeyComponents, n);
               for (let e of r) t.append(e);
             }
           }),
@@ -2218,7 +2157,7 @@
               e.select,
               t.contextItem,
               void 0,
-              M(t.variableScopes),
+              _(t.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: t,
@@ -2228,7 +2167,7 @@
             );
             r &&
               Symbol.iterator in Object(r) &&
-              ((r = j(t, r, e.sortKeyComponents, o)),
+              ((r = O(t, r, e.sortKeyComponents, o)),
               I(r, t, (t) => {
                 n(
                   Object.assign(Object.assign({}, t), {
@@ -2239,7 +2178,7 @@
           }),
           (e.forEachGroup = function (t, e, n) {
             const o = (0, p.mkResolver)(e.namespaces),
-              r = M(t.variableScopes),
+              r = _(t.variableScopes),
               a = (0, i.evaluateXPathToNodes)(
                 e.select,
                 t.contextItem,
@@ -2255,7 +2194,7 @@
               let r = [];
               (e.groupBy
                 ? (r = (function (t, e, n, o) {
-                    const r = M(t.variableScopes);
+                    const r = _(t.variableScopes);
                     let a = [];
                     return (
                       I(e, t, (t) => {
@@ -2279,7 +2218,7 @@
                   })(t, a, e.groupBy, o))
                 : e.groupAdjacent
                   ? (r = (function (t, e, n, o) {
-                      const r = M(t.variableScopes);
+                      const r = _(t.variableScopes);
                       let a = [],
                         s = null,
                         c = [];
@@ -2339,13 +2278,13 @@
                           r
                         );
                       })(t, a, e.groupStartingWith, o)),
-                (r = j(t, r, e.sortKeyComponents, o)),
-                O(r, t, n));
+                (r = O(t, r, e.sortKeyComponents, o)),
+                j(r, t, n));
             }
           }),
           (e.number = function (t, e) {
             const n = (0, p.mkResolver)(e.namespaces),
-              o = M(t.variableScopes);
+              o = _(t.variableScopes);
             let r;
             (e.value
               ? (r = (0, i.evaluateXPathToNumber)(
@@ -2632,7 +2571,7 @@
                 let a = t.get(e.xpath);
                 a || ((a = new Map()), t.set(e.xpath, a));
                 let s = n;
-                const c = M(o);
+                const c = _(o);
                 for (; s; ) {
                   let t = a.get(s);
                   if (
@@ -2729,7 +2668,7 @@
         }
         function R(t, e, n) {
           if (t.length > 0)
-            return (0, l.isNodeGroupArray)(t) ? O(t, e, n) : I(t, e, n);
+            return (0, l.isNodeGroupArray)(t) ? j(t, e, n) : I(t, e, n);
         }
         function I(t, e, n) {
           let o = 0;
@@ -2746,7 +2685,7 @@
             ),
           );
         }
-        function O(t, e, n) {
+        function j(t, e, n) {
           let o = 0;
           return t.map((t) => {
             o++;
@@ -2760,7 +2699,7 @@
             return n(r);
           });
         }
-        function j(t, e, n, o) {
+        function O(t, e, n, o) {
           if (n) for (let r of [...n].reverse()) e = E(t, e, r, o);
           return e;
         }
@@ -2771,7 +2710,7 @@
           let o = $(e.variableScopes);
           for (let r of t.allowedParams) {
             let t = P(r.name, n);
-            void 0 !== t ? _(o, t.name, B(e, t)) : _(o, r.name, B(e, r));
+            void 0 !== t ? M(o, t.name, B(e, t)) : M(o, r.name, B(e, r));
           }
           return t.apply(
             Object.assign(Object.assign({}, e), { variableScopes: o }),
@@ -2781,18 +2720,18 @@
           return t.concat([new Map()]);
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
-        let X = new Map();
-        function D(t) {
+        let D = new Map();
+        function X(t) {
           return (
-            X.has(t) || X.set(t, (0, i.createTypedValueFactory)(t)),
-            X.get(t)
+            D.has(t) || D.set(t, (0, i.createTypedValueFactory)(t)),
+            D.get(t)
           );
         }
         function L(t, e) {
-          if (Array.isArray(t) && 0 === t.length) return D("item()*")([], null);
+          if (Array.isArray(t) && 0 === t.length) return X("item()*")([], null);
           if (e)
             try {
-              return D(e)(t, null);
+              return X(e)(t, null);
             } catch (t) {}
           const n = Array.isArray(t),
             o = n ? t[0] : t;
@@ -2803,13 +2742,13 @@
               ? (r = "xs:string")
               : "number" == typeof o &&
                 (r = Number.isInteger(o) ? "xs:integer" : "xs:numeric"),
-            D(`${r}${a}`)(t, null)
+            X(`${r}${a}`)(t, null)
           );
         }
-        function _(t, e, n) {
+        function M(t, e, n) {
           t[t.length - 1].set(e, n);
         }
-        function M(t) {
+        function _(t) {
           let e = {};
           for (let n of t) for (let [t, o] of n) e[t] = o;
           return e;
@@ -2887,7 +2826,7 @@
         }
         function G(t, e, n) {
           if (!e) return;
-          const o = M(t.variableScopes);
+          const o = _(t.variableScopes);
           return e
             .map((e) =>
               "string" == typeof e
@@ -2910,7 +2849,7 @@
           o || (o = "string" == typeof e ? [" "] : []);
           const r = G(t, o, n);
           if ("string" == typeof e) {
-            const o = M(t.variableScopes);
+            const o = _(t.variableScopes);
             return (0, i.evaluateXPath)(
               e,
               t.contextItem,
@@ -2943,7 +2882,7 @@
               e.content,
               t.contextItem,
               void 0,
-              M(t.variableScopes),
+              _(t.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: t,
@@ -3009,10 +2948,6 @@
         "use strict";
         t.exports = require("slimdom");
       },
-      896(t) {
-        "use strict";
-        t.exports = require("fs");
-      },
       16(t) {
         "use strict";
         t.exports = require("url");
@@ -3024,6 +2959,6 @@
       if (void 0 !== r) return r.exports;
       var a = (e[o] = { exports: {} });
       return (t[o].call(a.exports, a, a.exports, n), a.exports);
-    })(999);
+    })(144);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/error-analysis.js b/src/preprocess/error-analysis.js
index d0dd01b..3e6a136 100644
--- a/src/preprocess/error-analysis.js
+++ b/src/preprocess/error-analysis.js
@@ -1,6 +1,6 @@
 (() => {
   var t = {
-      313(t, e, n) {
+      763(t, e, n) {
         (n(898), n(594));
         let o = n(821);
         function r(t, e) {
@@ -2100,6 +2100,7 @@
                   },
                 },
               },
+              readDocument: e.readDocument,
               keys: r,
               outputDefinitions: a,
               decimalFormats: s,
@@ -2395,7 +2396,7 @@
           }
         }
         e.NodeNamespaceFeature = w;
-        class h extends I {
+        class T extends I {
           matches(t) {
             var e;
             return (
@@ -2405,8 +2406,8 @@
             );
           }
         }
-        e.NodeTypeFeature = h;
-        class T extends I {
+        e.NodeTypeFeature = T;
+        class h extends I {
           matches(t) {
             var e;
             return (
@@ -2416,7 +2417,7 @@
             );
           }
         }
-        e.NodeNameFeature = T;
+        e.NodeNameFeature = h;
         class y extends I {
           matches(t) {
             var e;
@@ -2471,7 +2472,7 @@
               const o = t.childNodes.filter((t) => N(t, "stepExpr"));
               if (N(t.firstChild, "rootExpr")) {
                 if (0 === o.length)
-                  return void e.push(new h(u, l.Node.DOCUMENT_NODE));
+                  return void e.push(new T(u, l.Node.DOCUMENT_NODE));
                 if (
                   "descendant-or-self" !==
                     (null === (a = v((r = o[0]), "xpathAxis")) || void 0 === a
@@ -2495,8 +2496,8 @@
         }
         function X(t, e, n) {
           "attribute" === e
-            ? n.push(new h(t, l.Node.ATTRIBUTE_NODE))
-            : n.push(new h(t, l.Node.ELEMENT_NODE));
+            ? n.push(new T(t, l.Node.ATTRIBUTE_NODE))
+            : n.push(new T(t, l.Node.ELEMENT_NODE));
         }
         function R(t, e, n, o) {
           var r, a;
@@ -2509,7 +2510,7 @@
           for (const r of e.childNodes.slice(1)) {
             if (!E(r)) continue;
             const c = r.localName;
-            if ("nameTest" === c) (O(t, e, n, o), X(t, s, n));
+            if ("nameTest" === c) (D(t, e, n, o), X(t, s, n));
             else if ("Wildcard" === c) {
               const e = v(r, "NCName");
               if (e) {
@@ -2522,24 +2523,24 @@
               }
               X(t, s, n);
             } else if ("piTest" === c) {
-              n.push(new h(t, l.Node.PROCESSING_INSTRUCTION_NODE));
+              n.push(new T(t, l.Node.PROCESSING_INSTRUCTION_NODE));
               const e = v(r, "piTarget");
               (null == e ? void 0 : e.textContent) &&
-                n.push(new T(t, e.textContent));
+                n.push(new h(t, e.textContent));
             } else if ("commentTest" === c)
-              n.push(new h(t, l.Node.COMMENT_NODE));
-            else if ("textTest" === c) n.push(new h(t, l.Node.TEXT_NODE));
+              n.push(new T(t, l.Node.COMMENT_NODE));
+            else if ("textTest" === c) n.push(new T(t, l.Node.TEXT_NODE));
             else {
               if ("predicates" !== c) throw new S();
-              D(t, r, n, o);
+              O(t, r, n, o);
             }
           }
         }
-        function O(t, e, n, o) {
+        function D(t, e, n, o) {
           const r = v(e, "nameTest");
           if (!r) throw new S();
           const a = r.textContent;
-          a && n.push(new T(t, a));
+          a && n.push(new h(t, a));
           const s = r.getAttributeNS(p, "prefix");
           if (s) {
             const e = null == o ? void 0 : o(s);
@@ -2549,7 +2550,7 @@
           const c = r.getAttributeNS(p, "URI");
           c && n.push(new w(t, c));
         }
-        function D(t, e, n, o) {
+        function O(t, e, n, o) {
           for (const r of e.childNodes) {
             if (!E(r)) throw new S();
             const e = r.localName;
@@ -2557,17 +2558,17 @@
               const e = v(r, "firstOperand"),
                 o = v(r, "secondOperand");
               if (!e || !o) throw new S();
-              const a = P(t, e, o) || P(t, o, e);
+              const a = F(t, e, o) || F(t, o, e);
               if (!a) throw new S();
               n.push(a);
             } else {
               if ("andOp" !== e) throw new S();
-              (D(t, v(r, "firstOperand"), n, o),
-                D(t, v(r, "secondOperand"), n, o));
+              (O(t, v(r, "firstOperand"), n, o),
+                O(t, v(r, "secondOperand"), n, o));
             }
           }
         }
-        function P(t, e, n) {
+        function F(t, e, n) {
           var o, r;
           const a = b(n, "value");
           if (!a) return;
@@ -2890,13 +2891,13 @@
                 { namespaceURI: r.XJSLT_NSURI, localName: "base-uri" },
                 [],
                 "xs:string?",
-                h,
+                T,
               ),
               (0, o.registerCustomXPathFunction)(
                 { namespaceURI: r.XJSLT_NSURI, localName: "base-uri" },
                 ["node()?"],
                 "xs:string?",
-                h,
+                T,
               ),
               (0, o.registerCustomXPathFunction)(
                 { namespaceURI: r.XJSLT_NSURI, localName: "evaluate" },
@@ -2922,13 +2923,13 @@
                 { namespaceURI: r.XJSLT_NSURI, localName: "normalize-unicode" },
                 ["xs:string?"],
                 "xs:string",
-                (t, e) => T(0, e, "NFC"),
+                (t, e) => h(0, e, "NFC"),
               ),
               (0, o.registerCustomXPathFunction)(
                 { namespaceURI: r.XJSLT_NSURI, localName: "normalize-unicode" },
                 ["xs:string?", "xs:string"],
                 "xs:string",
-                T,
+                h,
               ),
               (0, o.registerCustomXPathFunction)(
                 { namespaceURI: r.XJSLT_NSURI, localName: "element-available" },
@@ -3035,7 +3036,7 @@
                       ? "no"
                       : "";
         }
-        function h({ currentContext: t }, e) {
+        function T({ currentContext: t }, e) {
           const n = void 0 !== e ? e : t.contextItem;
           if (!n) return null;
           let o = n;
@@ -3054,7 +3055,7 @@
           for (const t of r) a = new URL(t, a) || t;
           return a;
         }
-        function T(t, e, n) {
+        function h(t, e, n) {
           if (null == e) return "";
           const o = n.toUpperCase().replace("-", "");
           if (!["NFC", "NFD", "NFKC", "NFKD"].includes(o))
@@ -3284,14 +3285,14 @@
               }
               s++;
             }
-          const h = l();
+          const T = l();
           if (s < t.length)
             throw new Error(
               `XTDE1310: Active characters after picture string suffix: ${t.slice(s)}`,
             );
           return {
             prefix: p,
-            suffix: h,
+            suffix: T,
             integerMinDigits: Math.max(d, 1),
             integerGroupSize: u,
             decimalMinDigits: I,
@@ -3437,78 +3438,13 @@
       },
       472(t, e, n) {
         "use strict";
-        var o,
-          r =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (t, e, n, o) {
-                  void 0 === o && (o = n);
-                  var r = Object.getOwnPropertyDescriptor(e, n);
-                  ((r &&
-                    !("get" in r
-                      ? !e.__esModule
-                      : r.writable || r.configurable)) ||
-                    (r = {
-                      enumerable: !0,
-                      get: function () {
-                        return e[n];
-                      },
-                    }),
-                    Object.defineProperty(t, o, r));
-                }
-              : function (t, e, n, o) {
-                  (void 0 === o && (o = n), (t[o] = e[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (t, e) {
-                  Object.defineProperty(t, "default", {
-                    enumerable: !0,
-                    value: e,
-                  });
-                }
-              : function (t, e) {
-                  t.default = e;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((o = function (t) {
-              return (
-                (o =
-                  Object.getOwnPropertyNames ||
-                  function (t) {
-                    var e = [];
-                    for (var n in t)
-                      Object.prototype.hasOwnProperty.call(t, n) &&
-                        (e[e.length] = n);
-                    return e;
-                  }),
-                o(t)
-              );
-            }),
-            function (t) {
-              if (t && t.__esModule) return t;
-              var e = {};
-              if (null != t)
-                for (var n = o(t), s = 0; s < n.length; s++)
-                  "default" !== n[s] && r(e, t, n[s]);
-              return (a(e, t), e);
-            });
         (Object.defineProperty(e, "__esModule", { value: !0 }),
           (e.urlToDom = function (t, e) {
-            const n = t.inputURL ? (0, c.resolve)(t.inputURL.toString(), e) : e;
-            return n.startsWith("file:")
-              ? m.parseXmlDocument(
-                  (0, i.readFileSync)(
-                    (0, c.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!t.readDocument) return;
+            const n = t.inputURL ? (0, o.resolve)(t.inputURL.toString(), e) : e;
+            return t.readDocument(n);
           }));
-        const c = n(16),
-          i = n(896),
-          m = s(n(898));
+        const o = n(16);
       },
       821(t, e, n) {
         "use strict";
@@ -3591,7 +3527,7 @@
             if (n) {
               const o = n.next();
               o.done ||
-                D(
+                O(
                   o.value,
                   Object.assign(Object.assign({}, t), { nextMatches: n }),
                   e.params,
@@ -3604,7 +3540,7 @@
               let o = n.next();
               for (; !o.done && 1 === o.value.importPrecedence; ) o = n.next();
               o.done ||
-                D(
+                O(
                   o.value,
                   Object.assign(Object.assign({}, t), { nextMatches: n }),
                   e.params,
@@ -3631,7 +3567,7 @@
                 v(
                   Object.assign(Object.assign({}, t), {
                     mode: r,
-                    variableScopes: P(t.variableScopes),
+                    variableScopes: F(t.variableScopes),
                   }),
                   e.params,
                   e.namespaces,
@@ -3640,7 +3576,7 @@
           }),
           (e.callTemplate = function (t, e) {
             const n = t.namedTemplates.get(e.name);
-            if (void 0 !== n) return D(t.templates[n], t, e.params);
+            if (void 0 !== n) return O(t.templates[n], t, e.params);
             throw new Error(`Cannot find a template named ${e.name}`);
           }),
           (e.functionX = function (t, e) {
@@ -3729,7 +3665,7 @@
           (e.param = function (t, e) {
             C(t.variableScopes, e.name, t.stylesheetParams[e.name] || q(t, e));
           }),
-          (e.extendScope = P),
+          (e.extendScope = F),
           (e.wrapValue = _),
           (e.setVariable = C),
           (e.mergeVariableScopes = U),
@@ -3764,7 +3700,7 @@
             const a = t.append(o);
             n(
               Object.assign(Object.assign({}, t), {
-                variableScopes: P(t.variableScopes),
+                variableScopes: F(t.variableScopes),
                 append: a || t.append,
               }),
             );
@@ -3772,13 +3708,16 @@
           (e.attribute = function (t, e, n) {
             const o = (0, p.mkResolver)(e.namespaces),
               r = B(t, e.name, o),
-              [a, s] = (0, p.determineNamespace)(r, o, B(t, e.namespace, o)),
-              c = A(t, {
+              a = B(t, e.namespace, o),
+              [s, c] = r.includes(":")
+                ? (0, p.determineNamespace)(r, o, a)
+                : [a, r],
+              i = A(t, {
                 name: r,
-                namespace: a,
+                namespace: s,
                 value: z(t, e.select || n, o, e.separator),
               });
-            t.append(c);
+            t.append(i);
           }),
           (e.processingInstruction = function (t, e, n) {
             const o = B(t, e.name, (0, p.mkResolver)(e.namespaces)),
@@ -3819,7 +3758,7 @@
             const c = t.append(s);
             n(
               Object.assign(Object.assign({}, t), {
-                variableScopes: P(t.variableScopes),
+                variableScopes: F(t.variableScopes),
                 append: c || t.append,
               }),
             );
@@ -3867,7 +3806,7 @@
                 outputDocument: o,
                 append: r,
                 mode: "#default",
-                variableScopes: P(t.variableScopes),
+                variableScopes: F(t.variableScopes),
               }),
             );
           }),
@@ -3910,7 +3849,7 @@
               L(r, t, (t) => {
                 n(
                   Object.assign(Object.assign({}, t), {
-                    variableScopes: P(t.variableScopes),
+                    variableScopes: F(t.variableScopes),
                   }),
                 );
               }));
@@ -4291,8 +4230,8 @@
             }
           }));
         const w = new RegExp(/^[a-z |-]+$/),
-          h = new RegExp(/^@[a-z]+$/),
-          T = new RegExp(/text\(\)|node\(\)/),
+          T = new RegExp(/^@[a-z]+$/),
+          h = new RegExp(/text\(\)|node\(\)/),
           y = new RegExp(/@|attribute|node/);
         function g(t, e, n, o, r) {
           return !(
@@ -4300,9 +4239,9 @@
               (function (t, e) {
                 return (
                   (e.nodeType === l.NodeType.ATTRIBUTE && !y.exec(t)) ||
-                  (e.nodeType === l.NodeType.TEXT && !T.exec(t)) ||
+                  (e.nodeType === l.NodeType.TEXT && !h.exec(t)) ||
                   !(!w.exec(t) || e.nodeType === l.NodeType.ELEMENT) ||
-                  !(!h.exec(t) || e.nodeType === l.NodeType.ATTRIBUTE)
+                  !(!T.exec(t) || e.nodeType === l.NodeType.ATTRIBUTE)
                 );
               })(e.xpath, n)) ||
             void 0 ===
@@ -4373,7 +4312,7 @@
             a = E(N(o, r));
           const s = a.next();
           s.done ||
-            D(
+            O(
               s.value,
               Object.assign(Object.assign({}, t), { nextMatches: a }),
               e,
@@ -4433,7 +4372,7 @@
               contextList: t.nodes,
               currentGroup: t,
               position: o,
-              variableScopes: P(e.variableScopes),
+              variableScopes: F(e.variableScopes),
             });
             return n(r);
           });
@@ -4442,28 +4381,28 @@
           if (n) for (let r of [...n].reverse()) e = b(t, e, r, o);
           return e;
         }
-        function O(t, e) {
+        function D(t, e) {
           for (let n of e) if (n.name === t) return n;
         }
-        function D(t, e, n) {
-          let o = P(e.variableScopes);
+        function O(t, e, n) {
+          let o = F(e.variableScopes);
           for (let r of t.allowedParams) {
-            let t = O(r.name, n);
+            let t = D(r.name, n);
             void 0 !== t ? C(o, t.name, q(e, t)) : C(o, r.name, q(e, r));
           }
           return t.apply(
             Object.assign(Object.assign({}, e), { variableScopes: o }),
           );
         }
-        function P(t) {
+        function F(t) {
           return t.concat([new Map()]);
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
-        let F = new Map();
+        let P = new Map();
         function M(t) {
           return (
-            F.has(t) || F.set(t, (0, c.createTypedValueFactory)(t)),
-            F.get(t)
+            P.has(t) || P.set(t, (0, c.createTypedValueFactory)(t)),
+            P.get(t)
           );
         }
         function _(t, e) {
@@ -4642,7 +4581,7 @@
                         Object.assign(Object.assign({}, t), {
                           append: Y(n),
                           mode: "#default",
-                          variableScopes: P(t.variableScopes),
+                          variableScopes: F(t.variableScopes),
                         }),
                       ),
                       1 === n.length ? n[0] : n
@@ -4672,7 +4611,7 @@
                 append: n,
                 outputDocument: t.outputDocument,
                 mode: "#default",
-                variableScopes: P(t.variableScopes),
+                variableScopes: F(t.variableScopes),
               }),
             );
           });
@@ -4687,10 +4626,6 @@
         "use strict";
         t.exports = require("slimdom");
       },
-      896(t) {
-        "use strict";
-        t.exports = require("fs");
-      },
       16(t) {
         "use strict";
         t.exports = require("url");
@@ -4702,6 +4637,6 @@
       if (void 0 !== r) return r.exports;
       var a = (e[o] = { exports: {} });
       return (t[o].call(a.exports, a, a.exports, n), a.exports);
-    })(313);
+    })(763);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/import.js b/src/preprocess/import.js
index cd55631..fdf620e 100644
--- a/src/preprocess/import.js
+++ b/src/preprocess/import.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      100(e, t, n) {
+      868(e, t, n) {
         (n(898), n(594));
         let o = n(821);
         function r(e, t) {
@@ -362,6 +362,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: r,
               outputDefinitions: a,
               decimalFormats: s,
@@ -709,23 +710,23 @@
             );
           }
         }
-        function b(e) {
+        function T(e) {
           return (
             (function (e) {
               return 1 === e.nodeType;
             })(e) && e.namespaceURI === p
           );
         }
-        function T(e, t) {
-          return b(e) && e.localName === t;
+        function b(e, t) {
+          return T(e) && e.localName === t;
         }
         function S(e, t) {
-          for (const n of e.childNodes) if (T(n, t)) return n;
+          for (const n of e.childNodes) if (b(n, t)) return n;
         }
         function E(e, t, n) {
           for (const o of e.childNodes) {
-            if (!b(o)) continue;
-            if (T(o, t) && (!n || n(o))) return o;
+            if (!T(o)) continue;
+            if (b(o, t) && (!n || n(o))) return o;
             const e = E(o, t, n);
             if (e) return e;
           }
@@ -733,15 +734,15 @@
         t.NodeAttributeFeature = y;
         class R extends Error {}
         function I(e, t, n) {
-          if (!b(e)) return;
+          if (!T(e)) return;
           const o = e.localName;
           if ("module" === o || "mainModule" === o || "queryBody" === o)
             for (const o of e.childNodes) I(o, t, n);
           else {
             if ("pathExpr" !== o) throw new R();
             {
-              const o = e.childNodes.filter((e) => T(e, "stepExpr"));
-              if (T(e.firstChild, "rootExpr")) {
+              const o = e.childNodes.filter((e) => b(e, "stepExpr"));
+              if (b(e.firstChild, "rootExpr")) {
                 if (0 === o.length)
                   return void t.push(new w(m, l.Node.DOCUMENT_NODE));
                 if (
@@ -757,10 +758,10 @@
               if (0 === o.length) throw new R();
               const s = o.reverse();
               if (0 == s.length || s.length > 4) throw new R();
-              (O(m, s[0], t, n),
-                s[1] && O(d, s[1], t, n),
-                s[2] && O(f, s[2], t, n),
-                s[3] && O(h, s[3], t, n));
+              (P(m, s[0], t, n),
+                s[1] && P(d, s[1], t, n),
+                s[2] && P(f, s[2], t, n),
+                s[3] && P(h, s[3], t, n));
             }
           }
           var r, a;
@@ -770,7 +771,7 @@
             ? n.push(new w(e, l.Node.ATTRIBUTE_NODE))
             : n.push(new w(e, l.Node.ELEMENT_NODE));
         }
-        function O(e, t, n, o) {
+        function P(e, t, n, o) {
           var r, a;
           const s =
             null === (r = S(t, "xpathAxis")) || void 0 === r
@@ -779,9 +780,9 @@
           if ("child" !== s && "attribute" !== s)
             throw new R(`unsupported axis: ${s}`);
           for (const r of t.childNodes.slice(1)) {
-            if (!b(r)) continue;
+            if (!T(r)) continue;
             const i = r.localName;
-            if ("nameTest" === i) (P(e, t, n, o), j(e, s, n));
+            if ("nameTest" === i) (O(e, t, n, o), j(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(r, "NCName");
               if (t) {
@@ -807,7 +808,7 @@
             }
           }
         }
-        function P(e, t, n, o) {
+        function O(e, t, n, o) {
           const r = S(t, "nameTest");
           if (!r) throw new R();
           const a = r.textContent;
@@ -823,7 +824,7 @@
         }
         function $(e, t, n, o) {
           for (const r of t.childNodes) {
-            if (!b(r)) throw new R();
+            if (!T(r)) throw new R();
             const t = r.localName;
             if ("equalOp" === t) {
               const t = S(r, "firstOperand"),
@@ -1096,7 +1097,7 @@
       379(e, t, n) {
         "use strict";
         (Object.defineProperty(t, "__esModule", { value: !0 }),
-          (t.functionNameResolver = b),
+          (t.functionNameResolver = T),
           (t.registerFunctions = function () {
             ((0, o.registerCustomXPathFunction)(
               { namespaceURI: r.XJSLT_NSURI, localName: "current" },
@@ -1184,7 +1185,7 @@
                       o.evaluateXPath.ALL_RESULTS_TYPE,
                       {
                         currentContext: { currentContext: e },
-                        functionNameResolver: b,
+                        functionNameResolver: T,
                       },
                     );
                     return 1 === n.length ? n[0] : n;
@@ -1361,7 +1362,7 @@
           "positionx",
           "system-property",
         ];
-        function b({ prefix: e, localName: t }, n) {
+        function T({ prefix: e, localName: t }, n) {
           return (e && "fn" !== e) || !y.includes(t)
             ? null
             : { namespaceURI: r.XJSLT_NSURI, localName: t };
@@ -1709,78 +1710,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var o,
-          r =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, o) {
-                  void 0 === o && (o = n);
-                  var r = Object.getOwnPropertyDescriptor(t, n);
-                  ((r &&
-                    !("get" in r
-                      ? !t.__esModule
-                      : r.writable || r.configurable)) ||
-                    (r = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, o, r));
-                }
-              : function (e, t, n, o) {
-                  (void 0 === o && (o = n), (e[o] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((o = function (e) {
-              return (
-                (o =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                o(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = o(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && r(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? u.parseXmlDocument(
-                  (0, c.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, o.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          c = n(896),
-          u = s(n(898));
+        const o = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1855,8 +1791,8 @@
             t.KeyImpl =
               void 0),
           (t.visitNodes = h),
-          (t.dedupGenerator = b),
-          (t.mergeTemplateGenerators = T),
+          (t.dedupGenerator = T),
+          (t.mergeTemplateGenerators = b),
           (t.processNode = S),
           (t.nextMatch = function (e, t) {
             const n = e.nextMatches;
@@ -1883,7 +1819,7 @@
                 );
             }
           }),
-          (t.sort = O),
+          (t.sort = P),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               o = (0, i.evaluateXPathToNodes)(
@@ -1899,7 +1835,7 @@
               );
             let r = t.mode || "#default";
             ("#current" === r && (r = e.mode),
-              I(O(e, o, t.sortKeyComponents, n), e, (e) => {
+              I(P(e, o, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: r,
@@ -2044,13 +1980,16 @@
           (t.attribute = function (e, t, n) {
             const o = (0, p.mkResolver)(t.namespaces),
               r = G(e, t.name, o),
-              [a, s] = (0, p.determineNamespace)(r, o, G(e, t.namespace, o)),
-              i = U(e, {
+              a = G(e, t.namespace, o),
+              [s, i] = r.includes(":")
+                ? (0, p.determineNamespace)(r, o, a)
+                : [a, r],
+              c = U(e, {
                 name: r,
-                namespace: a,
+                namespace: s,
                 value: Y(e, t.select || n, o, t.separator),
               });
-            e.append(i);
+            e.append(c);
           }),
           (t.processingInstruction = function (e, t, n) {
             const o = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -2158,7 +2097,7 @@
                 },
               );
             if (o && Symbol.iterator in Object(o)) {
-              const r = O(e, o, t.sortKeyComponents, n);
+              const r = P(e, o, t.sortKeyComponents, n);
               for (let t of r) e.append(t);
             }
           }),
@@ -2178,7 +2117,7 @@
             );
             r &&
               Symbol.iterator in Object(r) &&
-              ((r = O(e, r, t.sortKeyComponents, o)),
+              ((r = P(e, r, t.sortKeyComponents, o)),
               I(r, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
@@ -2289,7 +2228,7 @@
                           r
                         );
                       })(e, a, t.groupStartingWith, o)),
-                (r = O(e, r, t.sortKeyComponents, o)),
+                (r = P(e, r, t.sortKeyComponents, o)),
                 j(r, e, n));
             }
           }),
@@ -2604,13 +2543,13 @@
               })(e, t, n, o, r)
           );
         }
-        function* b(e) {
+        function* T(e) {
           let t = new Set(),
             n = e.next();
           for (; !n.done; )
             (t.has(n.value) || (yield n.value, t.add(n.value)), (n = e.next()));
         }
-        function* T(e, t) {
+        function* b(e, t) {
           let n = [e.next(), t.next()];
           for (; !n[0].done || !n[1].done; )
             n[0].done
@@ -2642,7 +2581,7 @@
               e.mode,
               n,
             ),
-            a = b(T(o, r));
+            a = T(b(o, r));
           const s = a.next();
           s.done ||
             $(
@@ -2710,17 +2649,17 @@
             return n(r);
           });
         }
-        function O(e, t, n, o) {
+        function P(e, t, n, o) {
           if (n) for (let r of [...n].reverse()) t = E(e, t, r, o);
           return t;
         }
-        function P(e, t) {
+        function O(e, t) {
           for (let n of t) if (n.name === e) return n;
         }
         function $(e, t, n) {
           let o = C(t.variableScopes);
           for (let r of e.allowedParams) {
-            let e = P(r.name, n);
+            let e = O(r.name, n);
             void 0 !== e ? M(o, e.name, J(t, e)) : M(o, r.name, J(t, r));
           }
           return e.apply(
@@ -2959,10 +2898,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2974,6 +2909,6 @@
       if (void 0 !== r) return r.exports;
       var a = (t[o] = { exports: {} });
       return (e[o].call(a.exports, a, a.exports, n), a.exports);
-    })(100);
+    })(868);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/include.js b/src/preprocess/include.js
index 76b6dec..87c78fb 100644
--- a/src/preprocess/include.js
+++ b/src/preprocess/include.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      93(e, t, n) {
+      790(e, t, n) {
         (n(898), n(594));
         let r = n(821);
         function o(e, t) {
@@ -215,6 +215,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: o,
               outputDefinitions: a,
               decimalFormats: s,
@@ -514,7 +515,7 @@
           }
         }
         t.NodeNamespaceFeature = x;
-        class v extends g {
+        class N extends g {
           matches(e) {
             var t;
             return (
@@ -524,7 +525,7 @@
             );
           }
         }
-        t.NodeTypeFeature = v;
+        t.NodeTypeFeature = N;
         class w extends g {
           matches(e) {
             var t;
@@ -536,7 +537,7 @@
           }
         }
         t.NodeNameFeature = w;
-        class N extends g {
+        class v extends g {
           matches(e) {
             var t;
             return (
@@ -546,8 +547,8 @@
             );
           }
         }
-        t.NodeTextFeature = N;
-        class b extends g {
+        t.NodeTextFeature = v;
+        class y extends g {
           matches(e) {
             const t = this.nodeExtractor(e);
             return (
@@ -556,41 +557,41 @@
             );
           }
         }
-        function y(e) {
+        function T(e) {
           return (
             (function (e) {
               return 1 === e.nodeType;
             })(e) && e.namespaceURI === p
           );
         }
-        function T(e, t) {
-          return y(e) && e.localName === t;
+        function b(e, t) {
+          return T(e) && e.localName === t;
         }
         function S(e, t) {
-          for (const n of e.childNodes) if (T(n, t)) return n;
+          for (const n of e.childNodes) if (b(n, t)) return n;
         }
         function R(e, t, n) {
           for (const r of e.childNodes) {
-            if (!y(r)) continue;
-            if (T(r, t) && (!n || n(r))) return r;
+            if (!T(r)) continue;
+            if (b(r, t) && (!n || n(r))) return r;
             const e = R(r, t, n);
             if (e) return e;
           }
         }
-        t.NodeAttributeFeature = b;
+        t.NodeAttributeFeature = y;
         class E extends Error {}
         function I(e, t, n) {
-          if (!y(e)) return;
+          if (!T(e)) return;
           const r = e.localName;
           if ("module" === r || "mainModule" === r || "queryBody" === r)
             for (const r of e.childNodes) I(r, t, n);
           else {
             if ("pathExpr" !== r) throw new E();
             {
-              const r = e.childNodes.filter((e) => T(e, "stepExpr"));
-              if (T(e.firstChild, "rootExpr")) {
+              const r = e.childNodes.filter((e) => b(e, "stepExpr"));
+              if (b(e.firstChild, "rootExpr")) {
                 if (0 === r.length)
-                  return void t.push(new v(m, l.Node.DOCUMENT_NODE));
+                  return void t.push(new N(m, l.Node.DOCUMENT_NODE));
                 if (
                   "descendant-or-self" !==
                     (null === (a = S((o = r[0]), "xpathAxis")) || void 0 === a
@@ -604,20 +605,20 @@
               if (0 === r.length) throw new E();
               const s = r.reverse();
               if (0 == s.length || s.length > 4) throw new E();
-              (P(m, s[0], t, n),
-                s[1] && P(d, s[1], t, n),
-                s[2] && P(f, s[2], t, n),
-                s[3] && P(h, s[3], t, n));
+              (O(m, s[0], t, n),
+                s[1] && O(d, s[1], t, n),
+                s[2] && O(f, s[2], t, n),
+                s[3] && O(h, s[3], t, n));
             }
           }
           var o, a;
         }
-        function O(e, t, n) {
+        function $(e, t, n) {
           "attribute" === t
-            ? n.push(new v(e, l.Node.ATTRIBUTE_NODE))
-            : n.push(new v(e, l.Node.ELEMENT_NODE));
+            ? n.push(new N(e, l.Node.ATTRIBUTE_NODE))
+            : n.push(new N(e, l.Node.ELEMENT_NODE));
         }
-        function P(e, t, n, r) {
+        function O(e, t, n, r) {
           var o, a;
           const s =
             null === (o = S(t, "xpathAxis")) || void 0 === o
@@ -626,9 +627,9 @@
           if ("child" !== s && "attribute" !== s)
             throw new E(`unsupported axis: ${s}`);
           for (const o of t.childNodes.slice(1)) {
-            if (!y(o)) continue;
+            if (!T(o)) continue;
             const i = o.localName;
-            if ("nameTest" === i) ($(e, t, n, r), O(e, s, n));
+            if ("nameTest" === i) (P(e, t, n, r), $(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(o, "NCName");
               if (t) {
@@ -639,22 +640,22 @@
                 if (!o) throw new E(`unresolved ns prefix: ${o}`);
                 n.push(new x(e, o));
               }
-              O(e, s, n);
+              $(e, s, n);
             } else if ("piTest" === i) {
-              n.push(new v(e, l.Node.PROCESSING_INSTRUCTION_NODE));
+              n.push(new N(e, l.Node.PROCESSING_INSTRUCTION_NODE));
               const t = S(o, "piTarget");
               (null == t ? void 0 : t.textContent) &&
                 n.push(new w(e, t.textContent));
             } else if ("commentTest" === i)
-              n.push(new v(e, l.Node.COMMENT_NODE));
-            else if ("textTest" === i) n.push(new v(e, l.Node.TEXT_NODE));
+              n.push(new N(e, l.Node.COMMENT_NODE));
+            else if ("textTest" === i) n.push(new N(e, l.Node.TEXT_NODE));
             else {
               if ("predicates" !== i) throw new E();
-              j(e, o, n, r);
+              C(e, o, n, r);
             }
           }
         }
-        function $(e, t, n, r) {
+        function P(e, t, n, r) {
           const o = S(t, "nameTest");
           if (!o) throw new E();
           const a = o.textContent;
@@ -668,25 +669,25 @@
           const i = o.getAttributeNS(p, "URI");
           i && n.push(new x(e, i));
         }
-        function j(e, t, n, r) {
+        function C(e, t, n, r) {
           for (const o of t.childNodes) {
-            if (!y(o)) throw new E();
+            if (!T(o)) throw new E();
             const t = o.localName;
             if ("equalOp" === t) {
               const t = S(o, "firstOperand"),
                 r = S(o, "secondOperand");
               if (!t || !r) throw new E();
-              const a = C(e, t, r) || C(e, r, t);
+              const a = j(e, t, r) || j(e, r, t);
               if (!a) throw new E();
               n.push(a);
             } else {
               if ("andOp" !== t) throw new E();
-              (j(e, S(o, "firstOperand"), n, r),
-                j(e, S(o, "secondOperand"), n, r));
+              (C(e, S(o, "firstOperand"), n, r),
+                C(e, S(o, "secondOperand"), n, r));
             }
           }
         }
-        function C(e, t, n) {
+        function j(e, t, n) {
           var r, o;
           const a = R(n, "value");
           if (!a) return;
@@ -706,10 +707,10 @@
                 ? void 0
                 : o.textContent;
             if (!t) return;
-            return new b(e, { name: t, value: s });
+            return new y(e, { name: t, value: s });
           }
           return S(t, "contextItemExpr") || R(t, "textTest")
-            ? new N(e, s)
+            ? new v(e, s)
             : void 0;
         }
       },
@@ -943,7 +944,7 @@
       379(e, t, n) {
         "use strict";
         (Object.defineProperty(t, "__esModule", { value: !0 }),
-          (t.functionNameResolver = y),
+          (t.functionNameResolver = T),
           (t.registerFunctions = function () {
             ((0, r.registerCustomXPathFunction)(
               { namespaceURI: o.XJSLT_NSURI, localName: "current" },
@@ -1009,13 +1010,13 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "base-uri" },
                 [],
                 "xs:string?",
-                v,
+                N,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "base-uri" },
                 ["node()?"],
                 "xs:string?",
-                v,
+                N,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "evaluate" },
@@ -1031,7 +1032,7 @@
                       r.evaluateXPath.ALL_RESULTS_TYPE,
                       {
                         currentContext: { currentContext: e },
-                        functionNameResolver: y,
+                        functionNameResolver: T,
                       },
                     );
                     return 1 === n.length ? n[0] : n;
@@ -1059,13 +1060,13 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string"],
                 "xs:string",
-                N,
+                v,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string", "xs:string"],
                 "xs:string",
-                N,
+                v,
               ));
           }));
         const r = n(594),
@@ -1154,7 +1155,7 @@
                       ? "no"
                       : "";
         }
-        function v({ currentContext: e }, t) {
+        function N({ currentContext: e }, t) {
           const n = void 0 !== t ? t : e.contextItem;
           if (!n) return null;
           let r = n;
@@ -1180,7 +1181,7 @@
             throw new Error("FOCH0003: Normalization form not supported.");
           return t.normalize(r);
         }
-        function N({ currentContext: e }, t, n, r) {
+        function v({ currentContext: e }, t, n, r) {
           var s, i;
           const c = r || "#default",
             u =
@@ -1193,7 +1194,7 @@
                 : o.DEFAULT_DECIMAL_FORMAT;
           return (0, a.formatNumberWithPicture)(t, n, u);
         }
-        const b = [
+        const y = [
           "base-uri",
           "current",
           "current-group",
@@ -1208,8 +1209,8 @@
           "positionx",
           "system-property",
         ];
-        function y({ prefix: e, localName: t }, n) {
-          return (e && "fn" !== e) || !b.includes(t)
+        function T({ prefix: e, localName: t }, n) {
+          return (e && "fn" !== e) || !y.includes(t)
             ? null
             : { namespaceURI: o.XJSLT_NSURI, localName: t };
         }
@@ -1403,14 +1404,14 @@
               }
               s++;
             }
-          const v = l();
+          const N = l();
           if (s < e.length)
             throw new Error(
               `XTDE1310: Active characters after picture string suffix: ${e.slice(s)}`,
             );
           return {
             prefix: p,
-            suffix: v,
+            suffix: N,
             integerMinDigits: Math.max(d, 1),
             integerGroupSize: m,
             decimalMinDigits: g,
@@ -1556,78 +1557,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var r,
-          o =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, r) {
-                  void 0 === r && (r = n);
-                  var o = Object.getOwnPropertyDescriptor(t, n);
-                  ((o &&
-                    !("get" in o
-                      ? !t.__esModule
-                      : o.writable || o.configurable)) ||
-                    (o = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, r, o));
-                }
-              : function (e, t, n, r) {
-                  (void 0 === r && (r = n), (e[r] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((r = function (e) {
-              return (
-                (r =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                r(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = r(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && o(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? u.parseXmlDocument(
-                  (0, c.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, r.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          c = n(896),
-          u = s(n(898));
+        const r = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1702,15 +1638,15 @@
             t.KeyImpl =
               void 0),
           (t.visitNodes = h),
-          (t.dedupGenerator = y),
-          (t.mergeTemplateGenerators = T),
+          (t.dedupGenerator = T),
+          (t.mergeTemplateGenerators = b),
           (t.processNode = S),
           (t.nextMatch = function (e, t) {
             const n = e.nextMatches;
             if (n) {
               const r = n.next();
               r.done ||
-                j(
+                C(
                   r.value,
                   Object.assign(Object.assign({}, e), { nextMatches: n }),
                   t.params,
@@ -1723,14 +1659,14 @@
               let r = n.next();
               for (; !r.done && 1 === r.value.importPrecedence; ) r = n.next();
               r.done ||
-                j(
+                C(
                   r.value,
                   Object.assign(Object.assign({}, e), { nextMatches: n }),
                   t.params,
                 );
             }
           }),
-          (t.sort = P),
+          (t.sort = O),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               r = (0, i.evaluateXPathToNodes)(
@@ -1746,11 +1682,11 @@
               );
             let o = t.mode || "#default";
             ("#current" === o && (o = e.mode),
-              I(P(e, r, t.sortKeyComponents, n), e, (e) => {
+              I(O(e, r, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: o,
-                    variableScopes: C(e.variableScopes),
+                    variableScopes: j(e.variableScopes),
                   }),
                   t.params,
                   t.namespaces,
@@ -1759,7 +1695,7 @@
           }),
           (t.callTemplate = function (e, t) {
             const n = e.namedTemplates.get(t.name);
-            if (void 0 !== n) return j(e.templates[n], e, t.params);
+            if (void 0 !== n) return C(e.templates[n], e, t.params);
             throw new Error(`Cannot find a template named ${t.name}`);
           }),
           (t.functionX = function (e, t) {
@@ -1773,7 +1709,7 @@
                 let o = new Map();
                 return (
                   r.forEach((e, t) => o.set(e, n[t])),
-                  Y(
+                  B(
                     Object.assign(Object.assign({}, e), {
                       variableScopes: [o].concat(e.variableScopes),
                     }),
@@ -1843,13 +1779,13 @@
             e.append(J(e, n, (0, p.mkResolver)(t.namespaces), [""]));
           }),
           (t.variable = function (e, t) {
-            _(e.variableScopes, t.name, B(e, t));
+            _(e.variableScopes, t.name, Y(e, t));
           }),
           (t.param = function (e, t) {
-            _(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
+            _(e.variableScopes, t.name, e.stylesheetParams[t.name] || Y(e, t));
           }),
-          (t.extendScope = C),
-          (t.wrapValue = X),
+          (t.extendScope = j),
+          (t.wrapValue = M),
           (t.setVariable = _),
           (t.mergeVariableScopes = L),
           (t.literalText = function (e, t) {
@@ -1883,7 +1819,7 @@
             const a = e.append(r);
             n(
               Object.assign(Object.assign({}, e), {
-                variableScopes: C(e.variableScopes),
+                variableScopes: j(e.variableScopes),
                 append: a || e.append,
               }),
             );
@@ -1891,13 +1827,16 @@
           (t.attribute = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
-              [a, s] = (0, p.determineNamespace)(o, r, G(e, t.namespace, r)),
-              i = A(e, {
+              a = G(e, t.namespace, r),
+              [s, i] = o.includes(":")
+                ? (0, p.determineNamespace)(o, r, a)
+                : [a, o],
+              c = A(e, {
                 name: o,
-                namespace: a,
+                namespace: s,
                 value: J(e, t.select || n, r, t.separator),
               });
-            e.append(i);
+            e.append(c);
           }),
           (t.processingInstruction = function (e, t, n) {
             const r = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -1938,7 +1877,7 @@
             const i = e.append(s);
             n(
               Object.assign(Object.assign({}, e), {
-                variableScopes: C(e.variableScopes),
+                variableScopes: j(e.variableScopes),
                 append: i || e.append,
               }),
             );
@@ -1986,7 +1925,7 @@
                 outputDocument: r,
                 append: o,
                 mode: "#default",
-                variableScopes: C(e.variableScopes),
+                variableScopes: j(e.variableScopes),
               }),
             );
           }),
@@ -2005,7 +1944,7 @@
                 },
               );
             if (r && Symbol.iterator in Object(r)) {
-              const o = P(e, r, t.sortKeyComponents, n);
+              const o = O(e, r, t.sortKeyComponents, n);
               for (let t of o) e.append(t);
             }
           }),
@@ -2025,11 +1964,11 @@
             );
             o &&
               Symbol.iterator in Object(o) &&
-              ((o = P(e, o, t.sortKeyComponents, r)),
+              ((o = O(e, o, t.sortKeyComponents, r)),
               I(o, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
-                    variableScopes: C(e.variableScopes),
+                    variableScopes: j(e.variableScopes),
                   }),
                 );
               }));
@@ -2104,7 +2043,7 @@
                           I(t, e, (e) => {
                             const t = e.contextItem;
                             (a.push(t),
-                              b(
+                              y(
                                 e.patternMatchCache,
                                 n,
                                 t,
@@ -2123,7 +2062,7 @@
                         return (
                           I(t, e, (e) => {
                             const t = e.contextItem;
-                            (b(
+                            (y(
                               e.patternMatchCache,
                               n,
                               t,
@@ -2136,8 +2075,8 @@
                           o
                         );
                       })(e, a, t.groupStartingWith, r)),
-                (o = P(e, o, t.sortKeyComponents, r)),
-                O(o, e, n));
+                (o = O(e, o, t.sortKeyComponents, r)),
+                $(o, e, n));
             }
           }),
           (t.number = function (e, t) {
@@ -2247,7 +2186,7 @@
                     let n = new Map();
                     for (const r of t) {
                       const t = (0, p.mkResolver)(r.namespaces);
-                      if (b(n, r.match, e, [], t)) return !r.preserve;
+                      if (y(n, r.match, e, [], t)) return !r.preserve;
                     }
                     return !1;
                   })(o.parentNode, t) &&
@@ -2386,7 +2325,7 @@
                 h(t, (t) => {
                   if (
                     "string" == typeof this.use &&
-                    b(
+                    y(
                       e,
                       { xpath: this.match },
                       t,
@@ -2410,18 +2349,18 @@
             }
           }));
         const x = new RegExp(/^[a-z |-]+$/),
-          v = new RegExp(/^@[a-z]+$/),
+          N = new RegExp(/^@[a-z]+$/),
           w = new RegExp(/text\(\)|node\(\)/),
-          N = new RegExp(/@|attribute|node/);
-        function b(e, t, n, r, o) {
+          v = new RegExp(/@|attribute|node/);
+        function y(e, t, n, r, o) {
           return !(
             (n &&
               (function (e, t) {
                 return (
-                  (t.nodeType === l.NodeType.ATTRIBUTE && !N.exec(e)) ||
+                  (t.nodeType === l.NodeType.ATTRIBUTE && !v.exec(e)) ||
                   (t.nodeType === l.NodeType.TEXT && !w.exec(e)) ||
                   !(!x.exec(e) || t.nodeType === l.NodeType.ELEMENT) ||
-                  !(!v.exec(e) || t.nodeType === l.NodeType.ATTRIBUTE)
+                  !(!N.exec(e) || t.nodeType === l.NodeType.ATTRIBUTE)
                 );
               })(t.xpath, n)) ||
             void 0 ===
@@ -2451,13 +2390,13 @@
               })(e, t, n, r, o)
           );
         }
-        function* y(e) {
+        function* T(e) {
           let t = new Set(),
             n = e.next();
           for (; !n.done; )
             (t.has(n.value) || (yield n.value, t.add(n.value)), (n = e.next()));
         }
-        function* T(e, t) {
+        function* b(e, t) {
           let n = [e.next(), t.next()];
           for (; !n[0].done || !n[1].done; )
             n[0].done
@@ -2477,7 +2416,7 @@
                 const n = r[c];
                 i &&
                   ("#all" === n.modes[0] || n.modes.includes(a)) &&
-                  b(e, i, t, o, (0, p.mkResolver)(s)) &&
+                  y(e, i, t, o, (0, p.mkResolver)(s)) &&
                   (yield n);
               }
             })(
@@ -2489,10 +2428,10 @@
               e.mode,
               n,
             ),
-            a = y(T(r, o));
+            a = T(b(r, o));
           const s = a.next();
           s.done ||
-            j(
+            C(
               s.value,
               Object.assign(Object.assign({}, e), { nextMatches: a }),
               t,
@@ -2526,7 +2465,7 @@
         }
         function E(e, t, n) {
           if (e.length > 0)
-            return (0, l.isNodeGroupArray)(e) ? O(e, t, n) : I(e, t, n);
+            return (0, l.isNodeGroupArray)(e) ? $(e, t, n) : I(e, t, n);
         }
         function I(e, t, n) {
           let r = 0;
@@ -2543,7 +2482,7 @@
             ),
           );
         }
-        function O(e, t, n) {
+        function $(e, t, n) {
           let r = 0;
           return e.map((e) => {
             r++;
@@ -2552,44 +2491,44 @@
               contextList: e.nodes,
               currentGroup: e,
               position: r,
-              variableScopes: C(t.variableScopes),
+              variableScopes: j(t.variableScopes),
             });
             return n(o);
           });
         }
-        function P(e, t, n, r) {
+        function O(e, t, n, r) {
           if (n) for (let o of [...n].reverse()) t = R(e, t, o, r);
           return t;
         }
-        function $(e, t) {
+        function P(e, t) {
           for (let n of t) if (n.name === e) return n;
         }
-        function j(e, t, n) {
-          let r = C(t.variableScopes);
+        function C(e, t, n) {
+          let r = j(t.variableScopes);
           for (let o of e.allowedParams) {
-            let e = $(o.name, n);
-            void 0 !== e ? _(r, e.name, B(t, e)) : _(r, o.name, B(t, o));
+            let e = P(o.name, n);
+            void 0 !== e ? _(r, e.name, Y(t, e)) : _(r, o.name, Y(t, o));
           }
           return e.apply(
             Object.assign(Object.assign({}, t), { variableScopes: r }),
           );
         }
-        function C(e) {
+        function j(e) {
           return e.concat([new Map()]);
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
         let D = new Map();
-        function M(e) {
+        function X(e) {
           return (
             D.has(e) || D.set(e, (0, i.createTypedValueFactory)(e)),
             D.get(e)
           );
         }
-        function X(e, t) {
-          if (Array.isArray(e) && 0 === e.length) return M("item()*")([], null);
+        function M(e, t) {
+          if (Array.isArray(e) && 0 === e.length) return X("item()*")([], null);
           if (t)
             try {
-              return M(t)(e, null);
+              return X(t)(e, null);
             } catch (e) {}
           const n = Array.isArray(e),
             r = n ? e[0] : e;
@@ -2600,7 +2539,7 @@
               ? (o = "xs:string")
               : "number" == typeof r &&
                 (o = Number.isInteger(r) ? "xs:integer" : "xs:numeric"),
-            M(`${o}${a}`)(e, null)
+            X(`${o}${a}`)(e, null)
           );
         }
         function _(e, t, n) {
@@ -2731,9 +2670,9 @@
               }),
               t
             );
-          })(Y(e, t)).join(o);
+          })(B(e, t)).join(o);
         }
-        function B(e, t) {
+        function Y(e, t) {
           if ("string" == typeof t.content) {
             const n = t.as && t.as.match(/[\+\*]$/);
             let r = (0, i.evaluateXPath)(
@@ -2748,12 +2687,12 @@
                 functionNameResolver: u.functionNameResolver,
               },
             );
-            return (1 !== r.length || n || (r = r[0]), X(r, t.as));
+            return (1 !== r.length || n || (r = r[0]), M(r, t.as));
           }
           return null == t.content
             ? ""
             : t.as
-              ? X(
+              ? M(
                   (function (e, t) {
                     let n = [];
                     return (
@@ -2761,7 +2700,7 @@
                         Object.assign(Object.assign({}, e), {
                           append: z(n),
                           mode: "#default",
-                          variableScopes: C(e.variableScopes),
+                          variableScopes: j(e.variableScopes),
                         }),
                       ),
                       1 === n.length ? n[0] : n
@@ -2769,9 +2708,9 @@
                   })(e, t.content),
                   t.as,
                 )
-              : Y(e, t.content);
+              : B(e, t.content);
         }
-        function Y(e, t) {
+        function B(e, t) {
           return (function (e, t) {
             const n = e.outputDocument.createDocumentFragment();
             if (
@@ -2791,7 +2730,7 @@
                 append: n,
                 outputDocument: e.outputDocument,
                 mode: "#default",
-                variableScopes: C(e.variableScopes),
+                variableScopes: j(e.variableScopes),
               }),
             );
           });
@@ -2806,10 +2745,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2821,6 +2756,6 @@
       if (void 0 !== o) return o.exports;
       var a = (t[r] = { exports: {} });
       return (e[r].call(a.exports, a, a.exports, n), a.exports);
-    })(93);
+    })(790);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/simplified.js b/src/preprocess/simplified.js
index 5fb3bea..f93b633 100644
--- a/src/preprocess/simplified.js
+++ b/src/preprocess/simplified.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      781(e, t, n) {
+      571(e, t, n) {
         (n(898), n(594));
         let r = n(821);
         function o(e, t) {
@@ -203,6 +203,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: o,
               outputDefinitions: a,
               decimalFormats: s,
@@ -531,7 +532,7 @@
           }
         }
         t.NodeTextFeature = w;
-        class b extends h {
+        class T extends h {
           matches(e) {
             const t = this.nodeExtractor(e);
             return (
@@ -540,39 +541,39 @@
             );
           }
         }
-        function y(e) {
+        function b(e) {
           return (
             (function (e) {
               return 1 === e.nodeType;
             })(e) && e.namespaceURI === p
           );
         }
-        function T(e, t) {
-          return y(e) && e.localName === t;
+        function y(e, t) {
+          return b(e) && e.localName === t;
         }
         function S(e, t) {
-          for (const n of e.childNodes) if (T(n, t)) return n;
+          for (const n of e.childNodes) if (y(n, t)) return n;
         }
         function R(e, t, n) {
           for (const r of e.childNodes) {
-            if (!y(r)) continue;
-            if (T(r, t) && (!n || n(r))) return r;
+            if (!b(r)) continue;
+            if (y(r, t) && (!n || n(r))) return r;
             const e = R(r, t, n);
             if (e) return e;
           }
         }
-        t.NodeAttributeFeature = b;
+        t.NodeAttributeFeature = T;
         class E extends Error {}
         function O(e, t, n) {
-          if (!y(e)) return;
+          if (!b(e)) return;
           const r = e.localName;
           if ("module" === r || "mainModule" === r || "queryBody" === r)
             for (const r of e.childNodes) O(r, t, n);
           else {
             if ("pathExpr" !== r) throw new E();
             {
-              const r = e.childNodes.filter((e) => T(e, "stepExpr"));
-              if (T(e.firstChild, "rootExpr")) {
+              const r = e.childNodes.filter((e) => y(e, "stepExpr"));
+              if (y(e.firstChild, "rootExpr")) {
                 if (0 === r.length)
                   return void t.push(new N(m, l.Node.DOCUMENT_NODE));
                 if (
@@ -588,20 +589,20 @@
               if (0 === r.length) throw new E();
               const s = r.reverse();
               if (0 == s.length || s.length > 4) throw new E();
-              (I(m, s[0], t, n),
-                s[1] && I(d, s[1], t, n),
-                s[2] && I(f, s[2], t, n),
-                s[3] && I(g, s[3], t, n));
+              (P(m, s[0], t, n),
+                s[1] && P(d, s[1], t, n),
+                s[2] && P(f, s[2], t, n),
+                s[3] && P(g, s[3], t, n));
             }
           }
           var o, a;
         }
-        function P(e, t, n) {
+        function I(e, t, n) {
           "attribute" === t
             ? n.push(new N(e, l.Node.ATTRIBUTE_NODE))
             : n.push(new N(e, l.Node.ELEMENT_NODE));
         }
-        function I(e, t, n, r) {
+        function P(e, t, n, r) {
           var o, a;
           const s =
             null === (o = S(t, "xpathAxis")) || void 0 === o
@@ -610,9 +611,9 @@
           if ("child" !== s && "attribute" !== s)
             throw new E(`unsupported axis: ${s}`);
           for (const o of t.childNodes.slice(1)) {
-            if (!y(o)) continue;
+            if (!b(o)) continue;
             const i = o.localName;
-            if ("nameTest" === i) ($(e, t, n, r), P(e, s, n));
+            if ("nameTest" === i) ($(e, t, n, r), I(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(o, "NCName");
               if (t) {
@@ -623,7 +624,7 @@
                 if (!o) throw new E(`unresolved ns prefix: ${o}`);
                 n.push(new v(e, o));
               }
-              P(e, s, n);
+              I(e, s, n);
             } else if ("piTest" === i) {
               n.push(new N(e, l.Node.PROCESSING_INSTRUCTION_NODE));
               const t = S(o, "piTarget");
@@ -654,7 +655,7 @@
         }
         function C(e, t, n, r) {
           for (const o of t.childNodes) {
-            if (!y(o)) throw new E();
+            if (!b(o)) throw new E();
             const t = o.localName;
             if ("equalOp" === t) {
               const t = S(o, "firstOperand"),
@@ -690,7 +691,7 @@
                 ? void 0
                 : o.textContent;
             if (!t) return;
-            return new b(e, { name: t, value: s });
+            return new T(e, { name: t, value: s });
           }
           return S(t, "contextItemExpr") || R(t, "textTest")
             ? new w(e, s)
@@ -927,7 +928,7 @@
       379(e, t, n) {
         "use strict";
         (Object.defineProperty(t, "__esModule", { value: !0 }),
-          (t.functionNameResolver = y),
+          (t.functionNameResolver = b),
           (t.registerFunctions = function () {
             ((0, r.registerCustomXPathFunction)(
               { namespaceURI: o.XJSLT_NSURI, localName: "current" },
@@ -1015,7 +1016,7 @@
                       r.evaluateXPath.ALL_RESULTS_TYPE,
                       {
                         currentContext: { currentContext: e },
-                        functionNameResolver: y,
+                        functionNameResolver: b,
                       },
                     );
                     return 1 === n.length ? n[0] : n;
@@ -1177,7 +1178,7 @@
                 : o.DEFAULT_DECIMAL_FORMAT;
           return (0, a.formatNumberWithPicture)(t, n, u);
         }
-        const b = [
+        const T = [
           "base-uri",
           "current",
           "current-group",
@@ -1192,8 +1193,8 @@
           "positionx",
           "system-property",
         ];
-        function y({ prefix: e, localName: t }, n) {
-          return (e && "fn" !== e) || !b.includes(t)
+        function b({ prefix: e, localName: t }, n) {
+          return (e && "fn" !== e) || !T.includes(t)
             ? null
             : { namespaceURI: o.XJSLT_NSURI, localName: t };
         }
@@ -1540,78 +1541,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var r,
-          o =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, r) {
-                  void 0 === r && (r = n);
-                  var o = Object.getOwnPropertyDescriptor(t, n);
-                  ((o &&
-                    !("get" in o
-                      ? !t.__esModule
-                      : o.writable || o.configurable)) ||
-                    (o = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, r, o));
-                }
-              : function (e, t, n, r) {
-                  (void 0 === r && (r = n), (e[r] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((r = function (e) {
-              return (
-                (r =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                r(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = r(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && o(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? u.parseXmlDocument(
-                  (0, c.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, r.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          c = n(896),
-          u = s(n(898));
+        const r = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1686,8 +1622,8 @@
             t.KeyImpl =
               void 0),
           (t.visitNodes = g),
-          (t.dedupGenerator = y),
-          (t.mergeTemplateGenerators = T),
+          (t.dedupGenerator = b),
+          (t.mergeTemplateGenerators = y),
           (t.processNode = S),
           (t.nextMatch = function (e, t) {
             const n = e.nextMatches;
@@ -1714,7 +1650,7 @@
                 );
             }
           }),
-          (t.sort = I),
+          (t.sort = P),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               r = (0, i.evaluateXPathToNodes)(
@@ -1730,7 +1666,7 @@
               );
             let o = t.mode || "#default";
             ("#current" === o && (o = e.mode),
-              O(I(e, r, t.sortKeyComponents, n), e, (e) => {
+              O(P(e, r, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: o,
@@ -1833,7 +1769,7 @@
             j(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
           }),
           (t.extendScope = D),
-          (t.wrapValue = X),
+          (t.wrapValue = _),
           (t.setVariable = j),
           (t.mergeVariableScopes = L),
           (t.literalText = function (e, t) {
@@ -1854,14 +1790,14 @@
             );
             e.append(n);
           }),
-          (t.buildNode = U),
-          (t.buildAttributeNode = A),
+          (t.buildNode = A),
+          (t.buildAttributeNode = U),
           (t.literalElement = function (e, t, n) {
-            let r = U(e, { name: t.name, namespace: t.namespace });
+            let r = A(e, { name: t.name, namespace: t.namespace });
             const o = (0, p.mkResolver)(t.namespaces);
             for (let n of t.attributes) {
               const t = G(e, n.value, o),
-                a = A(e, { name: n.name, namespace: n.namespace, value: t });
+                a = U(e, { name: n.name, namespace: n.namespace, value: t });
               r.setAttributeNode(a);
             }
             const a = e.append(r);
@@ -1875,13 +1811,16 @@
           (t.attribute = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
-              [a, s] = (0, p.determineNamespace)(o, r, G(e, t.namespace, r)),
-              i = A(e, {
+              a = G(e, t.namespace, r),
+              [s, i] = o.includes(":")
+                ? (0, p.determineNamespace)(o, r, a)
+                : [a, o],
+              c = U(e, {
                 name: o,
-                namespace: a,
+                namespace: s,
                 value: J(e, t.select || n, r, t.separator),
               });
-            e.append(i);
+            e.append(c);
           }),
           (t.processingInstruction = function (e, t, n) {
             const r = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -1900,7 +1839,7 @@
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
               a = J(e, t.select || n, r, [""]),
-              s = A(e, {
+              s = U(e, {
                 name: `xmlns:${o}`,
                 namespace: l.XMLNS_NSURI,
                 value: a,
@@ -1911,7 +1850,7 @@
             const r = (0, p.mkResolver)(t.namespaces);
             let o = G(e, t.name, r),
               a = G(e, t.namespace, r),
-              s = U(e, {
+              s = A(e, {
                 name: o,
                 namespace: (0, p.determineNamespace)(
                   o,
@@ -1989,7 +1928,7 @@
                 },
               );
             if (r && Symbol.iterator in Object(r)) {
-              const o = I(e, r, t.sortKeyComponents, n);
+              const o = P(e, r, t.sortKeyComponents, n);
               for (let t of o) e.append(t);
             }
           }),
@@ -2009,7 +1948,7 @@
             );
             o &&
               Symbol.iterator in Object(o) &&
-              ((o = I(e, o, t.sortKeyComponents, r)),
+              ((o = P(e, o, t.sortKeyComponents, r)),
               O(o, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
@@ -2088,7 +2027,7 @@
                           O(t, e, (e) => {
                             const t = e.contextItem;
                             (a.push(t),
-                              b(
+                              T(
                                 e.patternMatchCache,
                                 n,
                                 t,
@@ -2107,7 +2046,7 @@
                         return (
                           O(t, e, (e) => {
                             const t = e.contextItem;
-                            (b(
+                            (T(
                               e.patternMatchCache,
                               n,
                               t,
@@ -2120,8 +2059,8 @@
                           o
                         );
                       })(e, a, t.groupStartingWith, r)),
-                (o = I(e, o, t.sortKeyComponents, r)),
-                P(o, e, n));
+                (o = P(e, o, t.sortKeyComponents, r)),
+                I(o, e, n));
             }
           }),
           (t.number = function (e, t) {
@@ -2231,7 +2170,7 @@
                     let n = new Map();
                     for (const r of t) {
                       const t = (0, p.mkResolver)(r.namespaces);
-                      if (b(n, r.match, e, [], t)) return !r.preserve;
+                      if (T(n, r.match, e, [], t)) return !r.preserve;
                     }
                     return !1;
                   })(o.parentNode, t) &&
@@ -2370,7 +2309,7 @@
                 g(t, (t) => {
                   if (
                     "string" == typeof this.use &&
-                    b(
+                    T(
                       e,
                       { xpath: this.match },
                       t,
@@ -2397,7 +2336,7 @@
           N = new RegExp(/^@[a-z]+$/),
           x = new RegExp(/text\(\)|node\(\)/),
           w = new RegExp(/@|attribute|node/);
-        function b(e, t, n, r, o) {
+        function T(e, t, n, r, o) {
           return !(
             (n &&
               (function (e, t) {
@@ -2435,13 +2374,13 @@
               })(e, t, n, r, o)
           );
         }
-        function* y(e) {
+        function* b(e) {
           let t = new Set(),
             n = e.next();
           for (; !n.done; )
             (t.has(n.value) || (yield n.value, t.add(n.value)), (n = e.next()));
         }
-        function* T(e, t) {
+        function* y(e, t) {
           let n = [e.next(), t.next()];
           for (; !n[0].done || !n[1].done; )
             n[0].done
@@ -2461,7 +2400,7 @@
                 const n = r[c];
                 i &&
                   ("#all" === n.modes[0] || n.modes.includes(a)) &&
-                  b(e, i, t, o, (0, p.mkResolver)(s)) &&
+                  T(e, i, t, o, (0, p.mkResolver)(s)) &&
                   (yield n);
               }
             })(
@@ -2473,7 +2412,7 @@
               e.mode,
               n,
             ),
-            a = y(T(r, o));
+            a = b(y(r, o));
           const s = a.next();
           s.done ||
             C(
@@ -2510,7 +2449,7 @@
         }
         function E(e, t, n) {
           if (e.length > 0)
-            return (0, l.isNodeGroupArray)(e) ? P(e, t, n) : O(e, t, n);
+            return (0, l.isNodeGroupArray)(e) ? I(e, t, n) : O(e, t, n);
         }
         function O(e, t, n) {
           let r = 0;
@@ -2527,7 +2466,7 @@
             ),
           );
         }
-        function P(e, t, n) {
+        function I(e, t, n) {
           let r = 0;
           return e.map((e) => {
             r++;
@@ -2541,7 +2480,7 @@
             return n(o);
           });
         }
-        function I(e, t, n, r) {
+        function P(e, t, n, r) {
           if (n) for (let o of [...n].reverse()) t = R(e, t, o, r);
           return t;
         }
@@ -2562,14 +2501,14 @@
           return e.concat([new Map()]);
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
-        let _ = new Map();
+        let X = new Map();
         function M(e) {
           return (
-            _.has(e) || _.set(e, (0, i.createTypedValueFactory)(e)),
-            _.get(e)
+            X.has(e) || X.set(e, (0, i.createTypedValueFactory)(e)),
+            X.get(e)
           );
         }
-        function X(e, t) {
+        function _(e, t) {
           if (Array.isArray(e) && 0 === e.length) return M("item()*")([], null);
           if (t)
             try {
@@ -2595,7 +2534,7 @@
           for (let n of e) for (let [e, r] of n) t[e] = r;
           return t;
         }
-        function U(e, t) {
+        function A(e, t) {
           let n;
           return (
             (n =
@@ -2605,7 +2544,7 @@
             n
           );
         }
-        function A(e, t) {
+        function U(e, t) {
           let n;
           return (
             (n = t.namespace
@@ -2732,12 +2671,12 @@
                 functionNameResolver: u.functionNameResolver,
               },
             );
-            return (1 !== r.length || n || (r = r[0]), X(r, t.as));
+            return (1 !== r.length || n || (r = r[0]), _(r, t.as));
           }
           return null == t.content
             ? ""
             : t.as
-              ? X(
+              ? _(
                   (function (e, t) {
                     let n = [];
                     return (
@@ -2790,10 +2729,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2805,6 +2740,6 @@
       if (void 0 !== o) return o.exports;
       var a = (t[r] = { exports: {} });
       return (e[r].call(a.exports, a, a.exports, n), a.exports);
-    })(781);
+    })(571);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/stripWhitespace1.js b/src/preprocess/stripWhitespace1.js
index 38bfe71..1fe13b5 100644
--- a/src/preprocess/stripWhitespace1.js
+++ b/src/preprocess/stripWhitespace1.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      446(e, t, n) {
+      801(e, t, n) {
         (n(898), n(594));
         let r = n(821);
         function o(e, t) {
@@ -144,6 +144,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: o,
               outputDefinitions: a,
               decimalFormats: s,
@@ -366,7 +367,7 @@
               return (function (e, t) {
                 const n = [];
                 try {
-                  return (O(e, n, t), n);
+                  return (I(e, n, t), n);
                 } catch (e) {
                   return;
                 }
@@ -427,7 +428,7 @@
             return this.nodeExtractor === e.nodeExtractor && super.equals(e);
           }
         }
-        class v extends h {
+        class N extends h {
           matches(e) {
             var t;
             return (
@@ -438,8 +439,8 @@
             );
           }
         }
-        t.NodeNamespaceFeature = v;
-        class N extends h {
+        t.NodeNamespaceFeature = N;
+        class v extends h {
           matches(e) {
             var t;
             return (
@@ -449,7 +450,7 @@
             );
           }
         }
-        t.NodeTypeFeature = N;
+        t.NodeTypeFeature = v;
         class x extends h {
           matches(e) {
             var t;
@@ -461,7 +462,7 @@
           }
         }
         t.NodeNameFeature = x;
-        class b extends h {
+        class w extends h {
           matches(e) {
             var t;
             return (
@@ -471,8 +472,8 @@
             );
           }
         }
-        t.NodeTextFeature = b;
-        class w extends h {
+        t.NodeTextFeature = w;
+        class b extends h {
           matches(e) {
             const t = this.nodeExtractor(e);
             return (
@@ -502,20 +503,20 @@
             if (e) return e;
           }
         }
-        t.NodeAttributeFeature = w;
+        t.NodeAttributeFeature = b;
         class E extends Error {}
-        function O(e, t, n) {
+        function I(e, t, n) {
           if (!y(e)) return;
           const r = e.localName;
           if ("module" === r || "mainModule" === r || "queryBody" === r)
-            for (const r of e.childNodes) O(r, t, n);
+            for (const r of e.childNodes) I(r, t, n);
           else {
             if ("pathExpr" !== r) throw new E();
             {
               const r = e.childNodes.filter((e) => T(e, "stepExpr"));
               if (T(e.firstChild, "rootExpr")) {
                 if (0 === r.length)
-                  return void t.push(new N(m, l.Node.DOCUMENT_NODE));
+                  return void t.push(new v(m, l.Node.DOCUMENT_NODE));
                 if (
                   "descendant-or-self" !==
                     (null === (a = S((o = r[0]), "xpathAxis")) || void 0 === a
@@ -529,20 +530,20 @@
               if (0 === r.length) throw new E();
               const s = r.reverse();
               if (0 == s.length || s.length > 4) throw new E();
-              (I(m, s[0], t, n),
-                s[1] && I(d, s[1], t, n),
-                s[2] && I(f, s[2], t, n),
-                s[3] && I(g, s[3], t, n));
+              (P(m, s[0], t, n),
+                s[1] && P(d, s[1], t, n),
+                s[2] && P(f, s[2], t, n),
+                s[3] && P(g, s[3], t, n));
             }
           }
           var o, a;
         }
-        function P(e, t, n) {
+        function O(e, t, n) {
           "attribute" === t
-            ? n.push(new N(e, l.Node.ATTRIBUTE_NODE))
-            : n.push(new N(e, l.Node.ELEMENT_NODE));
+            ? n.push(new v(e, l.Node.ATTRIBUTE_NODE))
+            : n.push(new v(e, l.Node.ELEMENT_NODE));
         }
-        function I(e, t, n, r) {
+        function P(e, t, n, r) {
           var o, a;
           const s =
             null === (o = S(t, "xpathAxis")) || void 0 === o
@@ -553,7 +554,7 @@
           for (const o of t.childNodes.slice(1)) {
             if (!y(o)) continue;
             const i = o.localName;
-            if ("nameTest" === i) ($(e, t, n, r), P(e, s, n));
+            if ("nameTest" === i) ($(e, t, n, r), O(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(o, "NCName");
               if (t) {
@@ -562,17 +563,17 @@
                     ? void 0
                     : r(null !== (a = t.textContent) && void 0 !== a ? a : "");
                 if (!o) throw new E(`unresolved ns prefix: ${o}`);
-                n.push(new v(e, o));
+                n.push(new N(e, o));
               }
-              P(e, s, n);
+              O(e, s, n);
             } else if ("piTest" === i) {
-              n.push(new N(e, l.Node.PROCESSING_INSTRUCTION_NODE));
+              n.push(new v(e, l.Node.PROCESSING_INSTRUCTION_NODE));
               const t = S(o, "piTarget");
               (null == t ? void 0 : t.textContent) &&
                 n.push(new x(e, t.textContent));
             } else if ("commentTest" === i)
-              n.push(new N(e, l.Node.COMMENT_NODE));
-            else if ("textTest" === i) n.push(new N(e, l.Node.TEXT_NODE));
+              n.push(new v(e, l.Node.COMMENT_NODE));
+            else if ("textTest" === i) n.push(new v(e, l.Node.TEXT_NODE));
             else {
               if ("predicates" !== i) throw new E();
               C(e, o, n, r);
@@ -588,10 +589,10 @@
           if (s) {
             const t = null == r ? void 0 : r(s);
             if (!t) throw new E(`unresolved ns prefix: ${t}`);
-            n.push(new v(e, t));
+            n.push(new N(e, t));
           }
           const i = o.getAttributeNS(p, "URI");
-          i && n.push(new v(e, i));
+          i && n.push(new N(e, i));
         }
         function C(e, t, n, r) {
           for (const o of t.childNodes) {
@@ -631,10 +632,10 @@
                 ? void 0
                 : o.textContent;
             if (!t) return;
-            return new w(e, { name: t, value: s });
+            return new b(e, { name: t, value: s });
           }
           return S(t, "contextItemExpr") || R(t, "textTest")
-            ? new b(e, s)
+            ? new w(e, s)
             : void 0;
         }
       },
@@ -928,19 +929,19 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "system-property" },
                 ["xs:string"],
                 "xs:string",
-                v,
+                N,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "base-uri" },
                 [],
                 "xs:string?",
-                N,
+                v,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "base-uri" },
                 ["node()?"],
                 "xs:string?",
-                N,
+                v,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "evaluate" },
@@ -984,13 +985,13 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string"],
                 "xs:string",
-                b,
+                w,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string", "xs:string"],
                 "xs:string",
-                b,
+                w,
               ));
           }));
         const r = n(594),
@@ -1061,7 +1062,7 @@
           const [n, r] = t.split(":");
           return !(!n || !r) && g.has(r);
         }
-        function v(e, t) {
+        function N(e, t) {
           return "version" === t.split(":")[1]
             ? "2.0"
             : "vendor" === t.split(":")[1]
@@ -1079,7 +1080,7 @@
                       ? "no"
                       : "";
         }
-        function N({ currentContext: e }, t) {
+        function v({ currentContext: e }, t) {
           const n = void 0 !== t ? t : e.contextItem;
           if (!n) return null;
           let r = n;
@@ -1105,7 +1106,7 @@
             throw new Error("FOCH0003: Normalization form not supported.");
           return t.normalize(r);
         }
-        function b({ currentContext: e }, t, n, r) {
+        function w({ currentContext: e }, t, n, r) {
           var s, i;
           const u = r || "#default",
             c =
@@ -1118,7 +1119,7 @@
                 : o.DEFAULT_DECIMAL_FORMAT;
           return (0, a.formatNumberWithPicture)(t, n, c);
         }
-        const w = [
+        const b = [
           "base-uri",
           "current",
           "current-group",
@@ -1134,7 +1135,7 @@
           "system-property",
         ];
         function y({ prefix: e, localName: t }, n) {
-          return (e && "fn" !== e) || !w.includes(t)
+          return (e && "fn" !== e) || !b.includes(t)
             ? null
             : { namespaceURI: o.XJSLT_NSURI, localName: t };
         }
@@ -1317,29 +1318,29 @@
           }
           g >= 0 && (m = f - g);
           let h = 0,
-            v = 0;
+            N = 0;
           if (s < e.length && e[s] === o)
             for (s++; s < e.length; ) {
               const t = e[s];
-              if (t === n) (h++, v++);
+              if (t === n) (h++, N++);
               else {
                 if (t !== r) break;
-                v++;
+                N++;
               }
               s++;
             }
-          const N = l();
+          const v = l();
           if (s < e.length)
             throw new Error(
               `XTDE1310: Active characters after picture string suffix: ${e.slice(s)}`,
             );
           return {
             prefix: p,
-            suffix: N,
+            suffix: v,
             integerMinDigits: Math.max(d, 1),
             integerGroupSize: m,
             decimalMinDigits: h,
-            decimalMaxDigits: v,
+            decimalMaxDigits: N,
             isPercent: i,
             isPerMille: u,
           };
@@ -1481,78 +1482,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var r,
-          o =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, r) {
-                  void 0 === r && (r = n);
-                  var o = Object.getOwnPropertyDescriptor(t, n);
-                  ((o &&
-                    !("get" in o
-                      ? !t.__esModule
-                      : o.writable || o.configurable)) ||
-                    (o = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, r, o));
-                }
-              : function (e, t, n, r) {
-                  (void 0 === r && (r = n), (e[r] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((r = function (e) {
-              return (
-                (r =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                r(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = r(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && o(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? c.parseXmlDocument(
-                  (0, u.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, r.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          u = n(896),
-          c = s(n(898));
+        const r = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1655,14 +1591,14 @@
                 );
             }
           }),
-          (t.sort = I),
+          (t.sort = P),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               r = (0, i.evaluateXPathToNodes)(
                 t.select,
                 e.contextItem,
                 void 0,
-                U(e.variableScopes),
+                A(e.variableScopes),
                 {
                   currentContext: e,
                   namespaceResolver: n,
@@ -1671,7 +1607,7 @@
               );
             let o = t.mode || "#default";
             ("#current" === o && (o = e.mode),
-              O(I(e, r, t.sortKeyComponents, n), e, (e) => {
+              I(P(e, r, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: o,
@@ -1744,7 +1680,7 @@
               t.select,
               e.contextItem,
               void 0,
-              U(e.variableScopes),
+              A(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -1774,9 +1710,9 @@
             j(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
           }),
           (t.extendScope = D),
-          (t.wrapValue = X),
+          (t.wrapValue = _),
           (t.setVariable = j),
-          (t.mergeVariableScopes = U),
+          (t.mergeVariableScopes = A),
           (t.literalText = function (e, t) {
             e.append(t);
           }),
@@ -1785,7 +1721,7 @@
               t.select,
               e.contextItem,
               void 0,
-              U(e.variableScopes),
+              A(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -1795,10 +1731,10 @@
             );
             e.append(n);
           }),
-          (t.buildNode = A),
+          (t.buildNode = U),
           (t.buildAttributeNode = L),
           (t.literalElement = function (e, t, n) {
-            let r = A(e, { name: t.name, namespace: t.namespace });
+            let r = U(e, { name: t.name, namespace: t.namespace });
             const o = (0, p.mkResolver)(t.namespaces);
             for (let n of t.attributes) {
               const t = G(e, n.value, o),
@@ -1816,13 +1752,16 @@
           (t.attribute = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
-              [a, s] = (0, p.determineNamespace)(o, r, G(e, t.namespace, r)),
-              i = L(e, {
+              a = G(e, t.namespace, r),
+              [s, i] = o.includes(":")
+                ? (0, p.determineNamespace)(o, r, a)
+                : [a, o],
+              u = L(e, {
                 name: o,
-                namespace: a,
+                namespace: s,
                 value: J(e, t.select || n, r, t.separator),
               });
-            e.append(i);
+            e.append(u);
           }),
           (t.processingInstruction = function (e, t, n) {
             const r = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -1852,7 +1791,7 @@
             const r = (0, p.mkResolver)(t.namespaces);
             let o = G(e, t.name, r),
               a = G(e, t.namespace, r),
-              s = A(e, {
+              s = U(e, {
                 name: o,
                 namespace: (0, p.determineNamespace)(
                   o,
@@ -1873,7 +1812,7 @@
               t.test,
               e.contextItem,
               void 0,
-              U(e.variableScopes),
+              A(e.variableScopes),
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
@@ -1889,7 +1828,7 @@
                   n.test,
                   e.contextItem,
                   void 0,
-                  U(e.variableScopes),
+                  A(e.variableScopes),
                   {
                     currentContext: e,
                     functionNameResolver: c.functionNameResolver,
@@ -1921,7 +1860,7 @@
                 t.select,
                 e.contextItem,
                 void 0,
-                U(e.variableScopes),
+                A(e.variableScopes),
                 i.evaluateXPath.ALL_RESULTS_TYPE,
                 {
                   currentContext: e,
@@ -1930,7 +1869,7 @@
                 },
               );
             if (r && Symbol.iterator in Object(r)) {
-              const o = I(e, r, t.sortKeyComponents, n);
+              const o = P(e, r, t.sortKeyComponents, n);
               for (let t of o) e.append(t);
             }
           }),
@@ -1940,7 +1879,7 @@
               t.select,
               e.contextItem,
               void 0,
-              U(e.variableScopes),
+              A(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -1950,8 +1889,8 @@
             );
             o &&
               Symbol.iterator in Object(o) &&
-              ((o = I(e, o, t.sortKeyComponents, r)),
-              O(o, e, (e) => {
+              ((o = P(e, o, t.sortKeyComponents, r)),
+              I(o, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
                     variableScopes: D(e.variableScopes),
@@ -1961,7 +1900,7 @@
           }),
           (t.forEachGroup = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
-              o = U(e.variableScopes),
+              o = A(e.variableScopes),
               a = (0, i.evaluateXPathToNodes)(
                 t.select,
                 e.contextItem,
@@ -1977,10 +1916,10 @@
               let o = [];
               (t.groupBy
                 ? (o = (function (e, t, n, r) {
-                    const o = U(e.variableScopes);
+                    const o = A(e.variableScopes);
                     let a = [];
                     return (
-                      O(t, e, (e) => {
+                      I(t, e, (e) => {
                         const t = (0, i.evaluateXPathToString)(
                           n,
                           e.contextItem,
@@ -2001,12 +1940,12 @@
                   })(e, a, t.groupBy, r))
                 : t.groupAdjacent
                   ? (o = (function (e, t, n, r) {
-                      const o = U(e.variableScopes);
+                      const o = A(e.variableScopes);
                       let a = [],
                         s = null,
                         u = [];
                       return (
-                        O(t, e, (e) => {
+                        I(t, e, (e) => {
                           const t = e.contextItem,
                             l = (0, i.evaluateXPathToString)(n, t, void 0, o, {
                               currentContext: e,
@@ -2026,10 +1965,10 @@
                         let o = [],
                           a = [];
                         return (
-                          O(t, e, (e) => {
+                          I(t, e, (e) => {
                             const t = e.contextItem;
                             (a.push(t),
-                              w(
+                              b(
                                 e.patternMatchCache,
                                 n,
                                 t,
@@ -2046,9 +1985,9 @@
                         let o = [],
                           a = [];
                         return (
-                          O(t, e, (e) => {
+                          I(t, e, (e) => {
                             const t = e.contextItem;
-                            (w(
+                            (b(
                               e.patternMatchCache,
                               n,
                               t,
@@ -2061,13 +2000,13 @@
                           o
                         );
                       })(e, a, t.groupStartingWith, r)),
-                (o = I(e, o, t.sortKeyComponents, r)),
-                P(o, e, n));
+                (o = P(e, o, t.sortKeyComponents, r)),
+                O(o, e, n));
             }
           }),
           (t.number = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
-              r = U(e.variableScopes);
+              r = A(e.variableScopes);
             let o;
             (t.value
               ? (o = (0, i.evaluateXPathToNumber)(
@@ -2172,7 +2111,7 @@
                     let n = new Map();
                     for (const r of t) {
                       const t = (0, p.mkResolver)(r.namespaces);
-                      if (w(n, r.match, e, [], t)) return !r.preserve;
+                      if (b(n, r.match, e, [], t)) return !r.preserve;
                     }
                     return !1;
                   })(o.parentNode, t) &&
@@ -2311,7 +2250,7 @@
                 g(t, (t) => {
                   if (
                     "string" == typeof this.use &&
-                    w(
+                    b(
                       e,
                       { xpath: this.match },
                       t,
@@ -2334,19 +2273,19 @@
               );
             }
           }));
-        const v = new RegExp(/^[a-z |-]+$/),
-          N = new RegExp(/^@[a-z]+$/),
+        const N = new RegExp(/^[a-z |-]+$/),
+          v = new RegExp(/^@[a-z]+$/),
           x = new RegExp(/text\(\)|node\(\)/),
-          b = new RegExp(/@|attribute|node/);
-        function w(e, t, n, r, o) {
+          w = new RegExp(/@|attribute|node/);
+        function b(e, t, n, r, o) {
           return !(
             (n &&
               (function (e, t) {
                 return (
-                  (t.nodeType === l.NodeType.ATTRIBUTE && !b.exec(e)) ||
+                  (t.nodeType === l.NodeType.ATTRIBUTE && !w.exec(e)) ||
                   (t.nodeType === l.NodeType.TEXT && !x.exec(e)) ||
-                  !(!v.exec(e) || t.nodeType === l.NodeType.ELEMENT) ||
-                  !(!N.exec(e) || t.nodeType === l.NodeType.ATTRIBUTE)
+                  !(!N.exec(e) || t.nodeType === l.NodeType.ELEMENT) ||
+                  !(!v.exec(e) || t.nodeType === l.NodeType.ATTRIBUTE)
                 );
               })(t.xpath, n)) ||
             void 0 ===
@@ -2354,7 +2293,7 @@
                 let a = e.get(t.xpath);
                 a || ((a = new Map()), e.set(t.xpath, a));
                 let s = n;
-                const u = U(r);
+                const u = A(r);
                 for (; s; ) {
                   let e = a.get(s);
                   if (
@@ -2402,7 +2341,7 @@
                 const n = r[u];
                 i &&
                   ("#all" === n.modes[0] || n.modes.includes(a)) &&
-                  w(e, i, t, o, (0, p.mkResolver)(s)) &&
+                  b(e, i, t, o, (0, p.mkResolver)(s)) &&
                   (yield n);
               }
             })(
@@ -2451,9 +2390,9 @@
         }
         function E(e, t, n) {
           if (e.length > 0)
-            return (0, l.isNodeGroupArray)(e) ? P(e, t, n) : O(e, t, n);
+            return (0, l.isNodeGroupArray)(e) ? O(e, t, n) : I(e, t, n);
         }
-        function O(e, t, n) {
+        function I(e, t, n) {
           let r = 0;
           return e.map(
             (o) => (
@@ -2468,7 +2407,7 @@
             ),
           );
         }
-        function P(e, t, n) {
+        function O(e, t, n) {
           let r = 0;
           return e.map((e) => {
             r++;
@@ -2482,7 +2421,7 @@
             return n(o);
           });
         }
-        function I(e, t, n, r) {
+        function P(e, t, n, r) {
           if (n) for (let o of [...n].reverse()) t = R(e, t, o, r);
           return t;
         }
@@ -2503,18 +2442,18 @@
           return e.concat([new Map()]);
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
-        let _ = new Map();
-        function M(e) {
+        let M = new Map();
+        function X(e) {
           return (
-            _.has(e) || _.set(e, (0, i.createTypedValueFactory)(e)),
-            _.get(e)
+            M.has(e) || M.set(e, (0, i.createTypedValueFactory)(e)),
+            M.get(e)
           );
         }
-        function X(e, t) {
-          if (Array.isArray(e) && 0 === e.length) return M("item()*")([], null);
+        function _(e, t) {
+          if (Array.isArray(e) && 0 === e.length) return X("item()*")([], null);
           if (t)
             try {
-              return M(t)(e, null);
+              return X(t)(e, null);
             } catch (e) {}
           const n = Array.isArray(e),
             r = n ? e[0] : e;
@@ -2525,18 +2464,18 @@
               ? (o = "xs:string")
               : "number" == typeof r &&
                 (o = Number.isInteger(r) ? "xs:integer" : "xs:numeric"),
-            M(`${o}${a}`)(e, null)
+            X(`${o}${a}`)(e, null)
           );
         }
         function j(e, t, n) {
           e[e.length - 1].set(t, n);
         }
-        function U(e) {
+        function A(e) {
           let t = {};
           for (let n of e) for (let [e, r] of n) t[e] = r;
           return t;
         }
-        function A(e, t) {
+        function U(e, t) {
           let n;
           return (
             (n =
@@ -2609,7 +2548,7 @@
         }
         function G(e, t, n) {
           if (!t) return;
-          const r = U(e.variableScopes);
+          const r = A(e.variableScopes);
           return t
             .map((t) =>
               "string" == typeof t
@@ -2632,7 +2571,7 @@
           r || (r = "string" == typeof t ? [" "] : []);
           const o = G(e, r, n);
           if ("string" == typeof t) {
-            const r = U(e.variableScopes);
+            const r = A(e.variableScopes);
             return (0, i.evaluateXPath)(
               t,
               e.contextItem,
@@ -2665,7 +2604,7 @@
               t.content,
               e.contextItem,
               void 0,
-              U(e.variableScopes),
+              A(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -2673,12 +2612,12 @@
                 functionNameResolver: c.functionNameResolver,
               },
             );
-            return (1 !== r.length || n || (r = r[0]), X(r, t.as));
+            return (1 !== r.length || n || (r = r[0]), _(r, t.as));
           }
           return null == t.content
             ? ""
             : t.as
-              ? X(
+              ? _(
                   (function (e, t) {
                     let n = [];
                     return (
@@ -2731,10 +2670,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2746,6 +2681,6 @@
       if (void 0 !== o) return o.exports;
       var a = (t[r] = { exports: {} });
       return (e[r].call(a.exports, a, a.exports, n), a.exports);
-    })(446);
+    })(801);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/stripWhitespace2.js b/src/preprocess/stripWhitespace2.js
index b046d1c..b077956 100644
--- a/src/preprocess/stripWhitespace2.js
+++ b/src/preprocess/stripWhitespace2.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      146(e, t, n) {
+      524(e, t, n) {
         (n(898), n(594));
         let r = n(821);
         function o(e, t) {
@@ -234,6 +234,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: o,
               outputDefinitions: a,
               decimalFormats: s,
@@ -456,7 +457,7 @@
               return (function (e, t) {
                 const n = [];
                 try {
-                  return (O(e, n, t), n);
+                  return ($(e, n, t), n);
                 } catch (e) {
                   return;
                 }
@@ -571,39 +572,39 @@
             );
           }
         }
-        function b(e) {
+        function T(e) {
           return (
             (function (e) {
               return 1 === e.nodeType;
             })(e) && e.namespaceURI === p
           );
         }
-        function T(e, t) {
-          return b(e) && e.localName === t;
+        function b(e, t) {
+          return T(e) && e.localName === t;
         }
         function S(e, t) {
-          for (const n of e.childNodes) if (T(n, t)) return n;
+          for (const n of e.childNodes) if (b(n, t)) return n;
         }
         function R(e, t, n) {
           for (const r of e.childNodes) {
-            if (!b(r)) continue;
-            if (T(r, t) && (!n || n(r))) return r;
+            if (!T(r)) continue;
+            if (b(r, t) && (!n || n(r))) return r;
             const e = R(r, t, n);
             if (e) return e;
           }
         }
         t.NodeAttributeFeature = y;
         class E extends Error {}
-        function O(e, t, n) {
-          if (!b(e)) return;
+        function $(e, t, n) {
+          if (!T(e)) return;
           const r = e.localName;
           if ("module" === r || "mainModule" === r || "queryBody" === r)
-            for (const r of e.childNodes) O(r, t, n);
+            for (const r of e.childNodes) $(r, t, n);
           else {
             if ("pathExpr" !== r) throw new E();
             {
-              const r = e.childNodes.filter((e) => T(e, "stepExpr"));
-              if (T(e.firstChild, "rootExpr")) {
+              const r = e.childNodes.filter((e) => b(e, "stepExpr"));
+              if (b(e.firstChild, "rootExpr")) {
                 if (0 === r.length)
                   return void t.push(new N(m, l.Node.DOCUMENT_NODE));
                 if (
@@ -619,20 +620,20 @@
               if (0 === r.length) throw new E();
               const s = r.reverse();
               if (0 == s.length || s.length > 4) throw new E();
-              (P(m, s[0], t, n),
-                s[1] && P(d, s[1], t, n),
-                s[2] && P(f, s[2], t, n),
-                s[3] && P(g, s[3], t, n));
+              (O(m, s[0], t, n),
+                s[1] && O(d, s[1], t, n),
+                s[2] && O(f, s[2], t, n),
+                s[3] && O(g, s[3], t, n));
             }
           }
           var o, a;
         }
-        function $(e, t, n) {
+        function I(e, t, n) {
           "attribute" === t
             ? n.push(new N(e, l.Node.ATTRIBUTE_NODE))
             : n.push(new N(e, l.Node.ELEMENT_NODE));
         }
-        function P(e, t, n, r) {
+        function O(e, t, n, r) {
           var o, a;
           const s =
             null === (o = S(t, "xpathAxis")) || void 0 === o
@@ -641,9 +642,9 @@
           if ("child" !== s && "attribute" !== s)
             throw new E(`unsupported axis: ${s}`);
           for (const o of t.childNodes.slice(1)) {
-            if (!b(o)) continue;
+            if (!T(o)) continue;
             const i = o.localName;
-            if ("nameTest" === i) (I(e, t, n, r), $(e, s, n));
+            if ("nameTest" === i) (P(e, t, n, r), I(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(o, "NCName");
               if (t) {
@@ -654,7 +655,7 @@
                 if (!o) throw new E(`unresolved ns prefix: ${o}`);
                 n.push(new v(e, o));
               }
-              $(e, s, n);
+              I(e, s, n);
             } else if ("piTest" === i) {
               n.push(new N(e, l.Node.PROCESSING_INSTRUCTION_NODE));
               const t = S(o, "piTarget");
@@ -669,7 +670,7 @@
             }
           }
         }
-        function I(e, t, n, r) {
+        function P(e, t, n, r) {
           const o = S(t, "nameTest");
           if (!o) throw new E();
           const a = o.textContent;
@@ -685,7 +686,7 @@
         }
         function C(e, t, n, r) {
           for (const o of t.childNodes) {
-            if (!b(o)) throw new E();
+            if (!T(o)) throw new E();
             const t = o.localName;
             if ("equalOp" === t) {
               const t = S(o, "firstOperand"),
@@ -958,7 +959,7 @@
       379(e, t, n) {
         "use strict";
         (Object.defineProperty(t, "__esModule", { value: !0 }),
-          (t.functionNameResolver = b),
+          (t.functionNameResolver = T),
           (t.registerFunctions = function () {
             ((0, r.registerCustomXPathFunction)(
               { namespaceURI: o.XJSLT_NSURI, localName: "current" },
@@ -1046,7 +1047,7 @@
                       r.evaluateXPath.ALL_RESULTS_TYPE,
                       {
                         currentContext: { currentContext: e },
-                        functionNameResolver: b,
+                        functionNameResolver: T,
                       },
                     );
                     return 1 === n.length ? n[0] : n;
@@ -1223,7 +1224,7 @@
           "positionx",
           "system-property",
         ];
-        function b({ prefix: e, localName: t }, n) {
+        function T({ prefix: e, localName: t }, n) {
           return (e && "fn" !== e) || !y.includes(t)
             ? null
             : { namespaceURI: o.XJSLT_NSURI, localName: t };
@@ -1571,78 +1572,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var r,
-          o =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, r) {
-                  void 0 === r && (r = n);
-                  var o = Object.getOwnPropertyDescriptor(t, n);
-                  ((o &&
-                    !("get" in o
-                      ? !t.__esModule
-                      : o.writable || o.configurable)) ||
-                    (o = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, r, o));
-                }
-              : function (e, t, n, r) {
-                  (void 0 === r && (r = n), (e[r] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((r = function (e) {
-              return (
-                (r =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                r(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = r(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && o(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? u.parseXmlDocument(
-                  (0, c.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, r.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          c = n(896),
-          u = s(n(898));
+        const r = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1717,8 +1653,8 @@
             t.KeyImpl =
               void 0),
           (t.visitNodes = g),
-          (t.dedupGenerator = b),
-          (t.mergeTemplateGenerators = T),
+          (t.dedupGenerator = T),
+          (t.mergeTemplateGenerators = b),
           (t.processNode = S),
           (t.nextMatch = function (e, t) {
             const n = e.nextMatches;
@@ -1745,14 +1681,14 @@
                 );
             }
           }),
-          (t.sort = P),
+          (t.sort = O),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               r = (0, i.evaluateXPathToNodes)(
                 t.select,
                 e.contextItem,
                 void 0,
-                L(e.variableScopes),
+                j(e.variableScopes),
                 {
                   currentContext: e,
                   namespaceResolver: n,
@@ -1761,7 +1697,7 @@
               );
             let o = t.mode || "#default";
             ("#current" === o && (o = e.mode),
-              O(P(e, r, t.sortKeyComponents, n), e, (e) => {
+              $(O(e, r, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: o,
@@ -1834,7 +1770,7 @@
               t.select,
               e.contextItem,
               void 0,
-              L(e.variableScopes),
+              j(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -1858,15 +1794,15 @@
             e.append(J(e, n, (0, p.mkResolver)(t.namespaces), [""]));
           }),
           (t.variable = function (e, t) {
-            j(e.variableScopes, t.name, B(e, t));
+            L(e.variableScopes, t.name, B(e, t));
           }),
           (t.param = function (e, t) {
-            j(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
+            L(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
           }),
           (t.extendScope = D),
-          (t.wrapValue = M),
-          (t.setVariable = j),
-          (t.mergeVariableScopes = L),
+          (t.wrapValue = _),
+          (t.setVariable = L),
+          (t.mergeVariableScopes = j),
           (t.literalText = function (e, t) {
             e.append(t);
           }),
@@ -1875,7 +1811,7 @@
               t.select,
               e.contextItem,
               void 0,
-              L(e.variableScopes),
+              j(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -1885,14 +1821,14 @@
             );
             e.append(n);
           }),
-          (t.buildNode = U),
-          (t.buildAttributeNode = A),
+          (t.buildNode = A),
+          (t.buildAttributeNode = U),
           (t.literalElement = function (e, t, n) {
-            let r = U(e, { name: t.name, namespace: t.namespace });
+            let r = A(e, { name: t.name, namespace: t.namespace });
             const o = (0, p.mkResolver)(t.namespaces);
             for (let n of t.attributes) {
               const t = G(e, n.value, o),
-                a = A(e, { name: n.name, namespace: n.namespace, value: t });
+                a = U(e, { name: n.name, namespace: n.namespace, value: t });
               r.setAttributeNode(a);
             }
             const a = e.append(r);
@@ -1906,13 +1842,16 @@
           (t.attribute = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
-              [a, s] = (0, p.determineNamespace)(o, r, G(e, t.namespace, r)),
-              i = A(e, {
+              a = G(e, t.namespace, r),
+              [s, i] = o.includes(":")
+                ? (0, p.determineNamespace)(o, r, a)
+                : [a, o],
+              c = U(e, {
                 name: o,
-                namespace: a,
+                namespace: s,
                 value: J(e, t.select || n, r, t.separator),
               });
-            e.append(i);
+            e.append(c);
           }),
           (t.processingInstruction = function (e, t, n) {
             const r = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -1931,7 +1870,7 @@
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
               a = J(e, t.select || n, r, [""]),
-              s = A(e, {
+              s = U(e, {
                 name: `xmlns:${o}`,
                 namespace: l.XMLNS_NSURI,
                 value: a,
@@ -1942,7 +1881,7 @@
             const r = (0, p.mkResolver)(t.namespaces);
             let o = G(e, t.name, r),
               a = G(e, t.namespace, r),
-              s = U(e, {
+              s = A(e, {
                 name: o,
                 namespace: (0, p.determineNamespace)(
                   o,
@@ -1963,7 +1902,7 @@
               t.test,
               e.contextItem,
               void 0,
-              L(e.variableScopes),
+              j(e.variableScopes),
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
@@ -1979,7 +1918,7 @@
                   n.test,
                   e.contextItem,
                   void 0,
-                  L(e.variableScopes),
+                  j(e.variableScopes),
                   {
                     currentContext: e,
                     functionNameResolver: u.functionNameResolver,
@@ -2011,7 +1950,7 @@
                 t.select,
                 e.contextItem,
                 void 0,
-                L(e.variableScopes),
+                j(e.variableScopes),
                 i.evaluateXPath.ALL_RESULTS_TYPE,
                 {
                   currentContext: e,
@@ -2020,7 +1959,7 @@
                 },
               );
             if (r && Symbol.iterator in Object(r)) {
-              const o = P(e, r, t.sortKeyComponents, n);
+              const o = O(e, r, t.sortKeyComponents, n);
               for (let t of o) e.append(t);
             }
           }),
@@ -2030,7 +1969,7 @@
               t.select,
               e.contextItem,
               void 0,
-              L(e.variableScopes),
+              j(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -2040,8 +1979,8 @@
             );
             o &&
               Symbol.iterator in Object(o) &&
-              ((o = P(e, o, t.sortKeyComponents, r)),
-              O(o, e, (e) => {
+              ((o = O(e, o, t.sortKeyComponents, r)),
+              $(o, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
                     variableScopes: D(e.variableScopes),
@@ -2051,7 +1990,7 @@
           }),
           (t.forEachGroup = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
-              o = L(e.variableScopes),
+              o = j(e.variableScopes),
               a = (0, i.evaluateXPathToNodes)(
                 t.select,
                 e.contextItem,
@@ -2067,10 +2006,10 @@
               let o = [];
               (t.groupBy
                 ? (o = (function (e, t, n, r) {
-                    const o = L(e.variableScopes);
+                    const o = j(e.variableScopes);
                     let a = [];
                     return (
-                      O(t, e, (e) => {
+                      $(t, e, (e) => {
                         const t = (0, i.evaluateXPathToString)(
                           n,
                           e.contextItem,
@@ -2091,12 +2030,12 @@
                   })(e, a, t.groupBy, r))
                 : t.groupAdjacent
                   ? (o = (function (e, t, n, r) {
-                      const o = L(e.variableScopes);
+                      const o = j(e.variableScopes);
                       let a = [],
                         s = null,
                         c = [];
                       return (
-                        O(t, e, (e) => {
+                        $(t, e, (e) => {
                           const t = e.contextItem,
                             l = (0, i.evaluateXPathToString)(n, t, void 0, o, {
                               currentContext: e,
@@ -2116,7 +2055,7 @@
                         let o = [],
                           a = [];
                         return (
-                          O(t, e, (e) => {
+                          $(t, e, (e) => {
                             const t = e.contextItem;
                             (a.push(t),
                               y(
@@ -2136,7 +2075,7 @@
                         let o = [],
                           a = [];
                         return (
-                          O(t, e, (e) => {
+                          $(t, e, (e) => {
                             const t = e.contextItem;
                             (y(
                               e.patternMatchCache,
@@ -2151,13 +2090,13 @@
                           o
                         );
                       })(e, a, t.groupStartingWith, r)),
-                (o = P(e, o, t.sortKeyComponents, r)),
-                $(o, e, n));
+                (o = O(e, o, t.sortKeyComponents, r)),
+                I(o, e, n));
             }
           }),
           (t.number = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
-              r = L(e.variableScopes);
+              r = j(e.variableScopes);
             let o;
             (t.value
               ? (o = (0, i.evaluateXPathToNumber)(
@@ -2444,7 +2383,7 @@
                 let a = e.get(t.xpath);
                 a || ((a = new Map()), e.set(t.xpath, a));
                 let s = n;
-                const c = L(r);
+                const c = j(r);
                 for (; s; ) {
                   let e = a.get(s);
                   if (
@@ -2466,13 +2405,13 @@
               })(e, t, n, r, o)
           );
         }
-        function* b(e) {
+        function* T(e) {
           let t = new Set(),
             n = e.next();
           for (; !n.done; )
             (t.has(n.value) || (yield n.value, t.add(n.value)), (n = e.next()));
         }
-        function* T(e, t) {
+        function* b(e, t) {
           let n = [e.next(), t.next()];
           for (; !n[0].done || !n[1].done; )
             n[0].done
@@ -2504,7 +2443,7 @@
               e.mode,
               n,
             ),
-            a = b(T(r, o));
+            a = T(b(r, o));
           const s = a.next();
           s.done ||
             C(
@@ -2541,9 +2480,9 @@
         }
         function E(e, t, n) {
           if (e.length > 0)
-            return (0, l.isNodeGroupArray)(e) ? $(e, t, n) : O(e, t, n);
+            return (0, l.isNodeGroupArray)(e) ? I(e, t, n) : $(e, t, n);
         }
-        function O(e, t, n) {
+        function $(e, t, n) {
           let r = 0;
           return e.map(
             (o) => (
@@ -2558,7 +2497,7 @@
             ),
           );
         }
-        function $(e, t, n) {
+        function I(e, t, n) {
           let r = 0;
           return e.map((e) => {
             r++;
@@ -2572,18 +2511,18 @@
             return n(o);
           });
         }
-        function P(e, t, n, r) {
+        function O(e, t, n, r) {
           if (n) for (let o of [...n].reverse()) t = R(e, t, o, r);
           return t;
         }
-        function I(e, t) {
+        function P(e, t) {
           for (let n of t) if (n.name === e) return n;
         }
         function C(e, t, n) {
           let r = D(t.variableScopes);
           for (let o of e.allowedParams) {
-            let e = I(o.name, n);
-            void 0 !== e ? j(r, e.name, B(t, e)) : j(r, o.name, B(t, o));
+            let e = P(o.name, n);
+            void 0 !== e ? L(r, e.name, B(t, e)) : L(r, o.name, B(t, o));
           }
           return e.apply(
             Object.assign(Object.assign({}, t), { variableScopes: r }),
@@ -2594,17 +2533,17 @@
         }
         new RegExp(/(^\/$|document-node\(|node\()/);
         let X = new Map();
-        function _(e) {
+        function M(e) {
           return (
             X.has(e) || X.set(e, (0, i.createTypedValueFactory)(e)),
             X.get(e)
           );
         }
-        function M(e, t) {
-          if (Array.isArray(e) && 0 === e.length) return _("item()*")([], null);
+        function _(e, t) {
+          if (Array.isArray(e) && 0 === e.length) return M("item()*")([], null);
           if (t)
             try {
-              return _(t)(e, null);
+              return M(t)(e, null);
             } catch (e) {}
           const n = Array.isArray(e),
             r = n ? e[0] : e;
@@ -2615,18 +2554,18 @@
               ? (o = "xs:string")
               : "number" == typeof r &&
                 (o = Number.isInteger(r) ? "xs:integer" : "xs:numeric"),
-            _(`${o}${a}`)(e, null)
+            M(`${o}${a}`)(e, null)
           );
         }
-        function j(e, t, n) {
+        function L(e, t, n) {
           e[e.length - 1].set(t, n);
         }
-        function L(e) {
+        function j(e) {
           let t = {};
           for (let n of e) for (let [e, r] of n) t[e] = r;
           return t;
         }
-        function U(e, t) {
+        function A(e, t) {
           let n;
           return (
             (n =
@@ -2636,7 +2575,7 @@
             n
           );
         }
-        function A(e, t) {
+        function U(e, t) {
           let n;
           return (
             (n = t.namespace
@@ -2699,7 +2638,7 @@
         }
         function G(e, t, n) {
           if (!t) return;
-          const r = L(e.variableScopes);
+          const r = j(e.variableScopes);
           return t
             .map((t) =>
               "string" == typeof t
@@ -2722,7 +2661,7 @@
           r || (r = "string" == typeof t ? [" "] : []);
           const o = G(e, r, n);
           if ("string" == typeof t) {
-            const r = L(e.variableScopes);
+            const r = j(e.variableScopes);
             return (0, i.evaluateXPath)(
               t,
               e.contextItem,
@@ -2755,7 +2694,7 @@
               t.content,
               e.contextItem,
               void 0,
-              L(e.variableScopes),
+              j(e.variableScopes),
               i.evaluateXPath.ALL_RESULTS_TYPE,
               {
                 currentContext: e,
@@ -2763,12 +2702,12 @@
                 functionNameResolver: u.functionNameResolver,
               },
             );
-            return (1 !== r.length || n || (r = r[0]), M(r, t.as));
+            return (1 !== r.length || n || (r = r[0]), _(r, t.as));
           }
           return null == t.content
             ? ""
             : t.as
-              ? M(
+              ? _(
                   (function (e, t) {
                     let n = [];
                     return (
@@ -2821,10 +2760,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2836,6 +2771,6 @@
       if (void 0 !== o) return o.exports;
       var a = (t[r] = { exports: {} });
       return (e[r].call(a.exports, a, a.exports, n), a.exports);
-    })(146);
+    })(524);
   module.exports = n.transform;
 })();
diff --git a/src/preprocess/use-when.js b/src/preprocess/use-when.js
index eb941a9..d5e0be9 100644
--- a/src/preprocess/use-when.js
+++ b/src/preprocess/use-when.js
@@ -1,6 +1,6 @@
 (() => {
   var e = {
-      901(e, t, n) {
+      882(e, t, n) {
         (n(898), n(594));
         let r = n(821);
         function o(e, t) {
@@ -252,6 +252,7 @@
                   },
                 },
               },
+              readDocument: t.readDocument,
               keys: o,
               outputDefinitions: a,
               decimalFormats: s,
@@ -285,16 +286,16 @@
             t.XMLNS_NSURI =
             t.XSLT1_NSURI =
               void 0),
-          (t.isNodeGroup = u),
+          (t.isNodeGroup = c),
           (t.isNodeGroupArray = function (e) {
-            return Array.isArray(e) && (0 === e.length || u(e[0]));
+            return Array.isArray(e) && (0 === e.length || c(e[0]));
           }));
         const r = n(953),
           o = String.raw`[^,:\(\)\*\[\]/]`,
           a = String.raw`(child::|attribute::|@)?`,
           s = String.raw`(document-node\()?`;
         var i;
-        function u(e) {
+        function c(e) {
           return (
             "object" == typeof e &&
             null !== e &&
@@ -483,17 +484,17 @@
                   return;
                 }
               })(
-                (0, c.parseScript)(
+                (0, u.parseScript)(
                   e,
-                  { language: c.evaluateXPath.XPATH_3_1_LANGUAGE },
+                  { language: u.evaluateXPath.XPATH_3_1_LANGUAGE },
                   new l.Document(),
                 ),
                 t,
               );
           }));
         const i = n(953),
-          u = n(712),
-          c = n(594),
+          c = n(712),
+          u = n(594),
           l = s(n(898)),
           p = "http://www.w3.org/2005/XQueryX";
         function m(e) {
@@ -522,7 +523,7 @@
               : n.parentNode) || void 0
           );
         }
-        class g extends u.Feature {
+        class g extends c.Feature {
           constructor(e, t) {
             (super(t), (this.nodeExtractor = e));
           }
@@ -562,7 +563,7 @@
           }
         }
         t.NodeTypeFeature = w;
-        class v extends g {
+        class N extends g {
           matches(e) {
             var t;
             return (
@@ -572,8 +573,8 @@
             );
           }
         }
-        t.NodeNameFeature = v;
-        class N extends g {
+        t.NodeNameFeature = N;
+        class v extends g {
           matches(e) {
             var t;
             return (
@@ -583,8 +584,8 @@
             );
           }
         }
-        t.NodeTextFeature = N;
-        class y extends g {
+        t.NodeTextFeature = v;
+        class T extends g {
           matches(e) {
             const t = this.nodeExtractor(e);
             return (
@@ -593,39 +594,39 @@
             );
           }
         }
-        function b(e) {
+        function y(e) {
           return (
             (function (e) {
               return 1 === e.nodeType;
             })(e) && e.namespaceURI === p
           );
         }
-        function T(e, t) {
-          return b(e) && e.localName === t;
+        function b(e, t) {
+          return y(e) && e.localName === t;
         }
         function S(e, t) {
-          for (const n of e.childNodes) if (T(n, t)) return n;
+          for (const n of e.childNodes) if (b(n, t)) return n;
         }
         function R(e, t, n) {
           for (const r of e.childNodes) {
-            if (!b(r)) continue;
-            if (T(r, t) && (!n || n(r))) return r;
+            if (!y(r)) continue;
+            if (b(r, t) && (!n || n(r))) return r;
             const e = R(r, t, n);
             if (e) return e;
           }
         }
-        t.NodeAttributeFeature = y;
+        t.NodeAttributeFeature = T;
         class E extends Error {}
         function O(e, t, n) {
-          if (!b(e)) return;
+          if (!y(e)) return;
           const r = e.localName;
           if ("module" === r || "mainModule" === r || "queryBody" === r)
             for (const r of e.childNodes) O(r, t, n);
           else {
             if ("pathExpr" !== r) throw new E();
             {
-              const r = e.childNodes.filter((e) => T(e, "stepExpr"));
-              if (T(e.firstChild, "rootExpr")) {
+              const r = e.childNodes.filter((e) => b(e, "stepExpr"));
+              if (b(e.firstChild, "rootExpr")) {
                 if (0 === r.length)
                   return void t.push(new w(m, l.Node.DOCUMENT_NODE));
                 if (
@@ -641,20 +642,20 @@
               if (0 === r.length) throw new E();
               const s = r.reverse();
               if (0 == s.length || s.length > 4) throw new E();
-              (j(m, s[0], t, n),
-                s[1] && j(d, s[1], t, n),
-                s[2] && j(f, s[2], t, n),
-                s[3] && j(h, s[3], t, n));
+              (P(m, s[0], t, n),
+                s[1] && P(d, s[1], t, n),
+                s[2] && P(f, s[2], t, n),
+                s[3] && P(h, s[3], t, n));
             }
           }
           var o, a;
         }
-        function P(e, t, n) {
+        function I(e, t, n) {
           "attribute" === t
             ? n.push(new w(e, l.Node.ATTRIBUTE_NODE))
             : n.push(new w(e, l.Node.ELEMENT_NODE));
         }
-        function j(e, t, n, r) {
+        function P(e, t, n, r) {
           var o, a;
           const s =
             null === (o = S(t, "xpathAxis")) || void 0 === o
@@ -663,9 +664,9 @@
           if ("child" !== s && "attribute" !== s)
             throw new E(`unsupported axis: ${s}`);
           for (const o of t.childNodes.slice(1)) {
-            if (!b(o)) continue;
+            if (!y(o)) continue;
             const i = o.localName;
-            if ("nameTest" === i) (I(e, t, n, r), P(e, s, n));
+            if ("nameTest" === i) ($(e, t, n, r), I(e, s, n));
             else if ("Wildcard" === i) {
               const t = S(o, "NCName");
               if (t) {
@@ -676,26 +677,26 @@
                 if (!o) throw new E(`unresolved ns prefix: ${o}`);
                 n.push(new x(e, o));
               }
-              P(e, s, n);
+              I(e, s, n);
             } else if ("piTest" === i) {
               n.push(new w(e, l.Node.PROCESSING_INSTRUCTION_NODE));
               const t = S(o, "piTarget");
               (null == t ? void 0 : t.textContent) &&
-                n.push(new v(e, t.textContent));
+                n.push(new N(e, t.textContent));
             } else if ("commentTest" === i)
               n.push(new w(e, l.Node.COMMENT_NODE));
             else if ("textTest" === i) n.push(new w(e, l.Node.TEXT_NODE));
             else {
               if ("predicates" !== i) throw new E();
-              $(e, o, n, r);
+              j(e, o, n, r);
             }
           }
         }
-        function I(e, t, n, r) {
+        function $(e, t, n, r) {
           const o = S(t, "nameTest");
           if (!o) throw new E();
           const a = o.textContent;
-          a && n.push(new v(e, a));
+          a && n.push(new N(e, a));
           const s = o.getAttributeNS(p, "prefix");
           if (s) {
             const t = null == r ? void 0 : r(s);
@@ -705,9 +706,9 @@
           const i = o.getAttributeNS(p, "URI");
           i && n.push(new x(e, i));
         }
-        function $(e, t, n, r) {
+        function j(e, t, n, r) {
           for (const o of t.childNodes) {
-            if (!b(o)) throw new E();
+            if (!y(o)) throw new E();
             const t = o.localName;
             if ("equalOp" === t) {
               const t = S(o, "firstOperand"),
@@ -718,8 +719,8 @@
               n.push(a);
             } else {
               if ("andOp" !== t) throw new E();
-              ($(e, S(o, "firstOperand"), n, r),
-                $(e, S(o, "secondOperand"), n, r));
+              (j(e, S(o, "firstOperand"), n, r),
+                j(e, S(o, "secondOperand"), n, r));
             }
           }
         }
@@ -743,10 +744,10 @@
                 ? void 0
                 : o.textContent;
             if (!t) return;
-            return new y(e, { name: t, value: s });
+            return new T(e, { name: t, value: s });
           }
           return S(t, "contextItemExpr") || R(t, "textTest")
-            ? new N(e, s)
+            ? new v(e, s)
             : void 0;
         }
       },
@@ -844,14 +845,14 @@
         function i(e) {
           return { type: "ArrayExpression", elements: e };
         }
-        function u(e, t, n) {
+        function c(e, t, n) {
           return {
             type: "VariableDeclaration",
             declarations: [{ type: "VariableDeclarator", id: e, init: t }],
             kind: n,
           };
         }
-        function c(e, t) {
+        function u(e, t) {
           return { type: "NewExpression", callee: e, arguments: t };
         }
         (Object.defineProperty(t, "__esModule", { value: !0 }),
@@ -932,13 +933,13 @@
             return { type: "BlockStatement", body: e };
           }),
           (t.mkLet = function (e, t) {
-            return u(e, t, "let");
+            return c(e, t, "let");
           }),
           (t.mkConst = function (e, t) {
-            return u(e, t, "const");
+            return c(e, t, "const");
           }),
-          (t.mkVariableDeclaration = u),
-          (t.mkNew = c),
+          (t.mkVariableDeclaration = c),
+          (t.mkNew = u),
           (t.toEstree = function e(t) {
             const n = typeof t;
             return null == t ||
@@ -954,7 +955,7 @@
                     ? a("xjslt", t.name)
                     : "object" === n
                       ? t instanceof Map
-                        ? c(r("Map"), [e(Array.from(t.entries()))])
+                        ? u(r("Map"), [e(Array.from(t.entries()))])
                         : "type" in t
                           ? t
                           : (function (t) {
@@ -980,7 +981,7 @@
       379(e, t, n) {
         "use strict";
         (Object.defineProperty(t, "__esModule", { value: !0 }),
-          (t.functionNameResolver = b),
+          (t.functionNameResolver = y),
           (t.registerFunctions = function () {
             ((0, r.registerCustomXPathFunction)(
               { namespaceURI: o.XJSLT_NSURI, localName: "current" },
@@ -1001,7 +1002,7 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "doc" },
                 ["xs:string"],
                 "document-node()",
-                u,
+                c,
               ),
               (0, r.registerCustomXPathFunction)(
                 {
@@ -1010,7 +1011,7 @@
                 },
                 [],
                 "xs:string?",
-                c,
+                u,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "current-group" },
@@ -1068,7 +1069,7 @@
                       r.evaluateXPath.ALL_RESULTS_TYPE,
                       {
                         currentContext: { currentContext: e },
-                        functionNameResolver: b,
+                        functionNameResolver: y,
                       },
                     );
                     return 1 === n.length ? n[0] : n;
@@ -1078,13 +1079,13 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "normalize-unicode" },
                 ["xs:string?"],
                 "xs:string",
-                (e, t) => v(0, t, "NFC"),
+                (e, t) => N(0, t, "NFC"),
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "normalize-unicode" },
                 ["xs:string?", "xs:string"],
                 "xs:string",
-                v,
+                N,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "element-available" },
@@ -1096,13 +1097,13 @@
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string"],
                 "xs:string",
-                N,
+                v,
               ),
               (0, r.registerCustomXPathFunction)(
                 { namespaceURI: o.XJSLT_NSURI, localName: "format-number" },
                 ["xs:numeric", "xs:string", "xs:string"],
                 "xs:string",
-                N,
+                v,
               ));
           }));
         const r = n(594),
@@ -1112,10 +1113,10 @@
         function i({ currentContext: e }) {
           return e.contextItem;
         }
-        function u({ currentContext: e }, t) {
+        function c({ currentContext: e }, t) {
           return (0, s.urlToDom)(e, t);
         }
-        function c({ currentContext: e }) {
+        function u({ currentContext: e }) {
           return e.currentGroup.key;
         }
         function l({ currentContext: e }) {
@@ -1210,27 +1211,27 @@
           for (const e of o) a = new URL(e, a) || e;
           return a;
         }
-        function v(e, t, n) {
+        function N(e, t, n) {
           if (null == t) return "";
           const r = n.toUpperCase().replace("-", "");
           if (!["NFC", "NFD", "NFKC", "NFKD"].includes(r))
             throw new Error("FOCH0003: Normalization form not supported.");
           return t.normalize(r);
         }
-        function N({ currentContext: e }, t, n, r) {
+        function v({ currentContext: e }, t, n, r) {
           var s, i;
-          const u = r || "#default",
-            c =
+          const c = r || "#default",
+            u =
               null !==
                 (i =
                   null === (s = e.decimalFormats) || void 0 === s
                     ? void 0
-                    : s.get(u)) && void 0 !== i
+                    : s.get(c)) && void 0 !== i
                 ? i
                 : o.DEFAULT_DECIMAL_FORMAT;
-          return (0, a.formatNumberWithPicture)(t, n, c);
+          return (0, a.formatNumberWithPicture)(t, n, u);
         }
-        const y = [
+        const T = [
           "base-uri",
           "current",
           "current-group",
@@ -1245,8 +1246,8 @@
           "positionx",
           "system-property",
         ];
-        function b({ prefix: e, localName: t }, n) {
-          return (e && "fn" !== e) || !y.includes(t)
+        function y({ prefix: e, localName: t }, n) {
+          return (e && "fn" !== e) || !T.includes(t)
             ? null
             : { namespaceURI: o.XJSLT_NSURI, localName: t };
         }
@@ -1257,8 +1258,8 @@
           (t.toAlphabeticUpper = t.toAlphabetic = void 0),
           (t.groupNumeric = s),
           (t.toNumeric = i),
-          (t.mkToAlphabetic = u),
-          (t.toRoman = c),
+          (t.mkToAlphabetic = c),
+          (t.toRoman = u),
           (t.formatWithToken = l),
           (t.formatNumber = function (e, t, n, r) {
             const o = [];
@@ -1277,20 +1278,20 @@
             if (isNaN(e)) return n.nan;
             if (!isFinite(e)) return (e < 0 ? n.minusSign : "") + n.infinity;
             const a = t.split(n.patternSeparator);
-            let u;
+            let c;
             if (e < 0)
-              if (a.length > 1) u = p(a[1], n);
+              if (a.length > 1) c = p(a[1], n);
               else {
                 const e = p(a[0], n);
-                u = Object.assign(Object.assign({}, e), {
+                c = Object.assign(Object.assign({}, e), {
                   prefix: `${n.minusSign}${e.prefix || ""}`,
                 });
               }
-            else u = p(a[0], n);
+            else c = p(a[0], n);
             return (function (e, t, n) {
               var a;
               t.isPercent ? (e *= 100) : t.isPerMille && (e *= 1e3);
-              const u = (0, r.evaluateXPathToNumber)(
+              const c = (0, r.evaluateXPathToNumber)(
                 "round-half-to-even($number, $precision)",
                 void 0,
                 void 0,
@@ -1299,23 +1300,23 @@
                   precision: (0, o.wrapValue)(t.decimalMaxDigits, "xs:integer"),
                 },
               );
-              let c = s(
-                  i(Math.trunc(u), t.integerMinDigits),
+              let u = s(
+                  i(Math.trunc(c), t.integerMinDigits),
                   n.groupingSeparator,
                   t.integerGroupSize,
                 ),
                 l =
-                  null !== (a = u.toString().split(".")[1]) && void 0 !== a
+                  null !== (a = c.toString().split(".")[1]) && void 0 !== a
                     ? a
                     : "";
               for (; l.length < t.decimalMinDigits; ) l += "0";
               const p = l.length > 0 ? n.decimalSeparator : "",
                 d = n.zeroDigit.codePointAt(0);
               return (
-                48 !== d && ((c = m(c, d)), (l = m(l, d))),
-                `${t.prefix}${c}${p}${l}${t.suffix}`
+                48 !== d && ((u = m(u, d)), (l = m(l, d))),
+                `${t.prefix}${u}${p}${l}${t.suffix}`
               );
-            })(Math.abs(e), u, n);
+            })(Math.abs(e), c, n);
           }));
         const r = n(594),
           o = n(821),
@@ -1338,7 +1339,7 @@
         function i(e, t) {
           return e.toString().padStart(t, "0");
         }
-        function u(e, t) {
+        function c(e, t) {
           const n = t - e + 1,
             r = [...Array(n)].map((t, n) => String.fromCodePoint(e + n));
           return function (e) {
@@ -1349,7 +1350,7 @@
             return t;
           };
         }
-        function c(e) {
+        function u(e) {
           const t = new Map([
             [1e3, "m"],
             [900, "cm"],
@@ -1376,8 +1377,8 @@
           if (/0*1/.test(n)) return s(i(e, n.length), r, o);
           if ("A" === n) return (0, t.toAlphabeticUpper)(e) || "";
           if ("a" === n) return (0, t.toAlphabetic)(e) || "";
-          if ("I" === n) return c(e).toUpperCase();
-          if ("i" === n) return c(e);
+          if ("I" === n) return u(e).toUpperCase();
+          if ("i" === n) return u(e);
           for (const t of a) {
             if (49 === t) continue;
             const a = t - 1;
@@ -1397,9 +1398,9 @@
             a = t.groupingSeparator;
           let s = 0,
             i = !1,
-            u = !1;
-          function c() {
-            if (i || u)
+            c = !1;
+          function u() {
+            if (i || c)
               throw new Error(
                 "XTDE1310: Multiple percent/per-mille characters.",
               );
@@ -1407,8 +1408,8 @@
           function l() {
             let a = "";
             for (; s < e.length && e[s] !== n && e[s] !== r && e[s] !== o; )
-              (e[s] === t.percent && (c(), (i = !0)),
-                e[s] === t.perMille && (c(), (u = !0)),
+              (e[s] === t.percent && (u(), (i = !0)),
+                e[s] === t.perMille && (u(), (c = !0)),
                 (a += e[s++]));
             return a;
           }
@@ -1453,7 +1454,7 @@
             decimalMinDigits: g,
             decimalMaxDigits: x,
             isPercent: i,
-            isPerMille: u,
+            isPerMille: c,
           };
         }
         function m(e, t) {
@@ -1464,7 +1465,7 @@
             })
             .join("");
         }
-        ((t.toAlphabetic = u(97, 122)), (t.toAlphabeticUpper = u(65, 90)));
+        ((t.toAlphabetic = c(97, 122)), (t.toAlphabeticUpper = c(65, 90)));
       },
       777(e, t) {
         "use strict";
@@ -1517,9 +1518,9 @@
             for (let [e, n] of i) if (e.test(t)) return n;
             return 0.5;
           }),
-          (t.compareSortable = u),
+          (t.compareSortable = c),
           (t.sortSortable = function (e) {
-            return e.sort(u);
+            return e.sort(c);
           }),
           (t.zip = function (e, t) {
             if (void 0 === e || void 0 === t) return [];
@@ -1582,7 +1583,7 @@
             [new RegExp(String.raw`^\s*${a}\*:${o}+\s*$`), -0.25],
             [new RegExp(String.raw`^\s*${a}${o}+\s*$`), 0],
           ]);
-        function u(e, t) {
+        function c(e, t) {
           const n = e.importPrecedence - t.importPrecedence;
           if (0 !== n) return n;
           {
@@ -1593,78 +1594,13 @@
       },
       472(e, t, n) {
         "use strict";
-        var r,
-          o =
-            (this && this.__createBinding) ||
-            (Object.create
-              ? function (e, t, n, r) {
-                  void 0 === r && (r = n);
-                  var o = Object.getOwnPropertyDescriptor(t, n);
-                  ((o &&
-                    !("get" in o
-                      ? !t.__esModule
-                      : o.writable || o.configurable)) ||
-                    (o = {
-                      enumerable: !0,
-                      get: function () {
-                        return t[n];
-                      },
-                    }),
-                    Object.defineProperty(e, r, o));
-                }
-              : function (e, t, n, r) {
-                  (void 0 === r && (r = n), (e[r] = t[n]));
-                }),
-          a =
-            (this && this.__setModuleDefault) ||
-            (Object.create
-              ? function (e, t) {
-                  Object.defineProperty(e, "default", {
-                    enumerable: !0,
-                    value: t,
-                  });
-                }
-              : function (e, t) {
-                  e.default = t;
-                }),
-          s =
-            (this && this.__importStar) ||
-            ((r = function (e) {
-              return (
-                (r =
-                  Object.getOwnPropertyNames ||
-                  function (e) {
-                    var t = [];
-                    for (var n in e)
-                      Object.prototype.hasOwnProperty.call(e, n) &&
-                        (t[t.length] = n);
-                    return t;
-                  }),
-                r(e)
-              );
-            }),
-            function (e) {
-              if (e && e.__esModule) return e;
-              var t = {};
-              if (null != e)
-                for (var n = r(e), s = 0; s < n.length; s++)
-                  "default" !== n[s] && o(t, e, n[s]);
-              return (a(t, e), t);
-            });
         (Object.defineProperty(t, "__esModule", { value: !0 }),
           (t.urlToDom = function (e, t) {
-            const n = e.inputURL ? (0, i.resolve)(e.inputURL.toString(), t) : t;
-            return n.startsWith("file:")
-              ? c.parseXmlDocument(
-                  (0, u.readFileSync)(
-                    (0, i.fileURLToPath)(new URL(n)),
-                  ).toString(),
-                )
-              : void 0;
+            if (!e.readDocument) return;
+            const n = e.inputURL ? (0, r.resolve)(e.inputURL.toString(), t) : t;
+            return e.readDocument(n);
           }));
-        const i = n(16),
-          u = n(896),
-          c = s(n(898));
+        const r = n(16);
       },
       821(e, t, n) {
         "use strict";
@@ -1739,15 +1675,15 @@
             t.KeyImpl =
               void 0),
           (t.visitNodes = h),
-          (t.dedupGenerator = b),
-          (t.mergeTemplateGenerators = T),
+          (t.dedupGenerator = y),
+          (t.mergeTemplateGenerators = b),
           (t.processNode = S),
           (t.nextMatch = function (e, t) {
             const n = e.nextMatches;
             if (n) {
               const r = n.next();
               r.done ||
-                $(
+                j(
                   r.value,
                   Object.assign(Object.assign({}, e), { nextMatches: n }),
                   t.params,
@@ -1760,14 +1696,14 @@
               let r = n.next();
               for (; !r.done && 1 === r.value.importPrecedence; ) r = n.next();
               r.done ||
-                $(
+                j(
                   r.value,
                   Object.assign(Object.assign({}, e), { nextMatches: n }),
                   t.params,
                 );
             }
           }),
-          (t.sort = j),
+          (t.sort = P),
           (t.applyTemplates = function (e, t) {
             const n = (0, p.mkResolver)(t.namespaces),
               r = (0, i.evaluateXPathToNodes)(
@@ -1778,12 +1714,12 @@
                 {
                   currentContext: e,
                   namespaceResolver: n,
-                  functionNameResolver: c.functionNameResolver,
+                  functionNameResolver: u.functionNameResolver,
                 },
               );
             let o = t.mode || "#default";
             ("#current" === o && (o = e.mode),
-              O(j(e, r, t.sortKeyComponents, n), e, (e) => {
+              O(P(e, r, t.sortKeyComponents, n), e, (e) => {
                 S(
                   Object.assign(Object.assign({}, e), {
                     mode: o,
@@ -1796,7 +1732,7 @@
           }),
           (t.callTemplate = function (e, t) {
             const n = e.namedTemplates.get(t.name);
-            if (void 0 !== n) return $(e.templates[n], e, t.params);
+            if (void 0 !== n) return j(e.templates[n], e, t.params);
             throw new Error(`Cannot find a template named ${t.name}`);
           }),
           (t.functionX = function (e, t) {
@@ -1861,7 +1797,7 @@
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             );
             for (let t of n) e.append(t);
@@ -1880,14 +1816,14 @@
             e.append(J(e, n, (0, p.mkResolver)(t.namespaces), [""]));
           }),
           (t.variable = function (e, t) {
-            M(e.variableScopes, t.name, B(e, t));
+            _(e.variableScopes, t.name, B(e, t));
           }),
           (t.param = function (e, t) {
-            M(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
+            _(e.variableScopes, t.name, e.stylesheetParams[t.name] || B(e, t));
           }),
           (t.extendScope = C),
-          (t.wrapValue = _),
-          (t.setVariable = M),
+          (t.wrapValue = M),
+          (t.setVariable = _),
           (t.mergeVariableScopes = L),
           (t.literalText = function (e, t) {
             e.append(t);
@@ -1902,19 +1838,19 @@
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             );
             e.append(n);
           }),
-          (t.buildNode = U),
-          (t.buildAttributeNode = A),
+          (t.buildNode = A),
+          (t.buildAttributeNode = U),
           (t.literalElement = function (e, t, n) {
-            let r = U(e, { name: t.name, namespace: t.namespace });
+            let r = A(e, { name: t.name, namespace: t.namespace });
             const o = (0, p.mkResolver)(t.namespaces);
             for (let n of t.attributes) {
               const t = G(e, n.value, o),
-                a = A(e, { name: n.name, namespace: n.namespace, value: t });
+                a = U(e, { name: n.name, namespace: n.namespace, value: t });
               r.setAttributeNode(a);
             }
             const a = e.append(r);
@@ -1928,13 +1864,16 @@
           (t.attribute = function (e, t, n) {
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
-              [a, s] = (0, p.determineNamespace)(o, r, G(e, t.namespace, r)),
-              i = A(e, {
+              a = G(e, t.namespace, r),
+              [s, i] = o.includes(":")
+                ? (0, p.determineNamespace)(o, r, a)
+                : [a, o],
+              c = U(e, {
                 name: o,
-                namespace: a,
+                namespace: s,
                 value: J(e, t.select || n, r, t.separator),
               });
-            e.append(i);
+            e.append(c);
           }),
           (t.processingInstruction = function (e, t, n) {
             const r = G(e, t.name, (0, p.mkResolver)(t.namespaces)),
@@ -1953,7 +1892,7 @@
             const r = (0, p.mkResolver)(t.namespaces),
               o = G(e, t.name, r),
               a = J(e, t.select || n, r, [""]),
-              s = A(e, {
+              s = U(e, {
                 name: `xmlns:${o}`,
                 namespace: l.XMLNS_NSURI,
                 value: a,
@@ -1964,7 +1903,7 @@
             const r = (0, p.mkResolver)(t.namespaces);
             let o = G(e, t.name, r),
               a = G(e, t.namespace, r),
-              s = U(e, {
+              s = A(e, {
                 name: o,
                 namespace: (0, p.determineNamespace)(
                   o,
@@ -1989,7 +1928,7 @@
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             ) && n(e);
           }),
@@ -2004,7 +1943,7 @@
                   L(e.variableScopes),
                   {
                     currentContext: e,
-                    functionNameResolver: c.functionNameResolver,
+                    functionNameResolver: u.functionNameResolver,
                   },
                 )
               )
@@ -2038,11 +1977,11 @@
                 {
                   currentContext: e,
                   namespaceResolver: n,
-                  functionNameResolver: c.functionNameResolver,
+                  functionNameResolver: u.functionNameResolver,
                 },
               );
             if (r && Symbol.iterator in Object(r)) {
-              const o = j(e, r, t.sortKeyComponents, n);
+              const o = P(e, r, t.sortKeyComponents, n);
               for (let t of o) e.append(t);
             }
           }),
@@ -2057,12 +1996,12 @@
               {
                 currentContext: e,
                 namespaceResolver: r,
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             );
             o &&
               Symbol.iterator in Object(o) &&
-              ((o = j(e, o, t.sortKeyComponents, r)),
+              ((o = P(e, o, t.sortKeyComponents, r)),
               O(o, e, (e) => {
                 n(
                   Object.assign(Object.assign({}, e), {
@@ -2082,7 +2021,7 @@
                 {
                   currentContext: e,
                   namespaceResolver: r,
-                  functionNameResolver: c.functionNameResolver,
+                  functionNameResolver: u.functionNameResolver,
                 },
               );
             if (a && Symbol.iterator in Object(a)) {
@@ -2101,7 +2040,7 @@
                           {
                             currentContext: e,
                             namespaceResolver: r,
-                            functionNameResolver: c.functionNameResolver,
+                            functionNameResolver: u.functionNameResolver,
                           },
                         );
                         let s = a.find((e) => e.key === t);
@@ -2116,20 +2055,20 @@
                       const o = L(e.variableScopes);
                       let a = [],
                         s = null,
-                        u = [];
+                        c = [];
                       return (
                         O(t, e, (e) => {
                           const t = e.contextItem,
                             l = (0, i.evaluateXPathToString)(n, t, void 0, o, {
                               currentContext: e,
                               namespaceResolver: r,
-                              functionNameResolver: c.functionNameResolver,
+                              functionNameResolver: u.functionNameResolver,
                             });
                           l !== s
-                            ? (F(a, u, s), (s = l), (u = [t]))
-                            : u.push(t);
+                            ? (F(a, c, s), (s = l), (c = [t]))
+                            : c.push(t);
                         }),
-                        F(a, u, s),
+                        F(a, c, s),
                         a
                       );
                     })(e, a, t.groupAdjacent, r))
@@ -2141,7 +2080,7 @@
                           O(t, e, (e) => {
                             const t = e.contextItem;
                             (a.push(t),
-                              y(
+                              T(
                                 e.patternMatchCache,
                                 n,
                                 t,
@@ -2160,7 +2099,7 @@
                         return (
                           O(t, e, (e) => {
                             const t = e.contextItem;
-                            (y(
+                            (T(
                               e.patternMatchCache,
                               n,
                               t,
@@ -2173,8 +2112,8 @@
                           o
                         );
                       })(e, a, t.groupStartingWith, r)),
-                (o = j(e, o, t.sortKeyComponents, r)),
-                P(o, e, n));
+                (o = P(e, o, t.sortKeyComponents, r)),
+                I(o, e, n));
             }
           }),
           (t.number = function (e, t) {
@@ -2190,7 +2129,7 @@
                   {
                     currentContext: e,
                     namespaceResolver: n,
-                    functionNameResolver: c.functionNameResolver,
+                    functionNameResolver: u.functionNameResolver,
                   },
                 ))
               : "single" === t.level &&
@@ -2228,26 +2167,26 @@
                 Object.assign({}, a ? e.outputDefinitions.get(a) : {}),
                 s,
               ),
-              u = o(t.href);
-            let c = null;
+              c = o(t.href);
+            let u = null;
             if (
               ((i.doctypePublic || i.doctypeSystem) &&
-                (c = e.outputDocument.implementation.createDocumentType(
+                (u = e.outputDocument.implementation.createDocumentType(
                   "out",
                   i.doctypePublic || "",
                   i.doctypeSystem || "",
                 )),
-              u)
+              c)
             ) {
               const t = e.outputDocument.implementation.createDocument(
                 null,
                 null,
-                c,
+                u,
               );
-              if (e.resultDocuments.has(u))
-                throw new Error(`XTDE1490: ${u} is a duplicate`);
+              if (e.resultDocuments.has(c))
+                throw new Error(`XTDE1490: ${c} is a duplicate`);
               (e.resultDocuments.set(
-                u,
+                c,
                 Object.assign(Object.assign({}, i), { document: t }),
               ),
                 n(
@@ -2259,11 +2198,11 @@
             } else {
               if (e.outputDocument.documentElement) throw new Error("XTDE1490");
               let t = e.outputDocument;
-              (c &&
+              (u &&
                 ((t = e.outputDocument.implementation.createDocument(
                   null,
                   null,
-                  c,
+                  u,
                 )),
                 (e.outputDocument = t),
                 (e.append = k(t))),
@@ -2284,7 +2223,7 @@
                     let n = new Map();
                     for (const r of t) {
                       const t = (0, p.mkResolver)(r.namespaces);
-                      if (y(n, r.match, e, [], t)) return !r.preserve;
+                      if (T(n, r.match, e, [], t)) return !r.preserve;
                     }
                     return !1;
                   })(o.parentNode, t) &&
@@ -2297,7 +2236,7 @@
           }),
           (t.evaluateAttributeValueTemplate = G),
           (t.serialize = function (e) {
-            const t = new u.XMLSerializer();
+            const t = new c.XMLSerializer();
             if (!0 !== e.omitXmlDeclaration) {
               let t = new Map([
                 ["version", "1.0"],
@@ -2339,8 +2278,8 @@
           }),
           (t.initialize = function (e, t) {}));
         const i = n(594),
-          u = s(n(898)),
-          c = n(379),
+          c = s(n(898)),
+          u = n(379),
           l = n(712),
           p = n(777),
           m = n(845),
@@ -2423,7 +2362,7 @@
                 h(t, (t) => {
                   if (
                     "string" == typeof this.use &&
-                    y(
+                    T(
                       e,
                       { xpath: this.match },
                       t,
@@ -2448,15 +2387,15 @@
           }));
         const x = new RegExp(/^[a-z |-]+$/),
           w = new RegExp(/^@[a-z]+$/),
-          v = new RegExp(/text\(\)|node\(\)/),
-          N = new RegExp(/@|attribute|node/);
-        function y(e, t, n, r, o) {
+          N = new RegExp(/text\(\)|node\(\)/),
+          v = new RegExp(/@|attribute|node/);
+        function T(e, t, n, r, o) {
           return !(
             (n &&
               (function (e, t) {
                 return (
-                  (t.nodeType === l.NodeType.ATTRIBUTE && !N.exec(e)) ||
-                  (t.nodeType === l.NodeType.TEXT && !v.exec(e)) ||
+                  (t.nodeType === l.NodeType.ATTRIBUTE && !v.exec(e)) ||
+                  (t.nodeType === l.NodeType.TEXT && !N.exec(e)) ||
                   !(!x.exec(e) || t.nodeType === l.NodeType.ELEMENT) ||
                   !(!w.exec(e) || t.nodeType === l.NodeType.ATTRIBUTE)
                 );
@@ -2466,16 +2405,16 @@
                 let a = e.get(t.xpath);
                 a || ((a = new Map()), e.set(t.xpath, a));
                 let s = n;
-                const u = L(r);
+                const c = L(r);
                 for (; s; ) {
                   let e = a.get(s);
                   if (
                     (void 0 === e &&
                       ((e = t.compiled
                         ? (0, i.executeJavaScriptCompiledXPath)(t.compiled, s)
-                        : (0, i.evaluateXPathToNodes)(t.xpath, s, void 0, u, {
+                        : (0, i.evaluateXPathToNodes)(t.xpath, s, void 0, c, {
                             namespaceResolver: o,
-                            functionNameResolver: c.functionNameResolver,
+                            functionNameResolver: u.functionNameResolver,
                           })),
                       a.set(s, e)),
                     -1 !== e.indexOf(n))
@@ -2488,13 +2427,13 @@
               })(e, t, n, r, o)
           );
         }
-        function* b(e) {
+        function* y(e) {
           let t = new Set(),
             n = e.next();
           for (; !n.done; )
             (t.has(n.value) || (yield n.value, t.add(n.value)), (n = e.next()));
         }
-        function* T(e, t) {
+        function* b(e, t) {
           let n = [e.next(), t.next()];
           for (; !n[0].done || !n[1].done; )
             n[0].done
@@ -2510,11 +2449,11 @@
                 ("#all" === e.modes[0] || e.modes.includes(r)) && (yield e);
             })(e.contextItem, e.ruleTree, e.templates, e.mode),
             o = (function* (e, t, n, r, o, a, s) {
-              for (let [i, u] of n) {
-                const n = r[u];
+              for (let [i, c] of n) {
+                const n = r[c];
                 i &&
                   ("#all" === n.modes[0] || n.modes.includes(a)) &&
-                  y(e, i, t, o, (0, p.mkResolver)(s)) &&
+                  T(e, i, t, o, (0, p.mkResolver)(s)) &&
                   (yield n);
               }
             })(
@@ -2526,10 +2465,10 @@
               e.mode,
               n,
             ),
-            a = b(T(r, o));
+            a = y(b(r, o));
           const s = a.next();
           s.done ||
-            $(
+            j(
               s.value,
               Object.assign(Object.assign({}, e), { nextMatches: a }),
               t,
@@ -2563,7 +2502,7 @@
         }
         function E(e, t, n) {
           if (e.length > 0)
-            return (0, l.isNodeGroupArray)(e) ? P(e, t, n) : O(e, t, n);
+            return (0, l.isNodeGroupArray)(e) ? I(e, t, n) : O(e, t, n);
         }
         function O(e, t, n) {
           let r = 0;
@@ -2580,7 +2519,7 @@
             ),
           );
         }
-        function P(e, t, n) {
+        function I(e, t, n) {
           let r = 0;
           return e.map((e) => {
             r++;
@@ -2594,18 +2533,18 @@
             return n(o);
           });
         }
-        function j(e, t, n, r) {
+        function P(e, t, n, r) {
           if (n) for (let o of [...n].reverse()) t = R(e, t, o, r);
           return t;
         }
-        function I(e, t) {
+        function $(e, t) {
           for (let n of t) if (n.name === e) return n;
         }
-        function $(e, t, n) {
+        function j(e, t, n) {
           let r = C(t.variableScopes);
           for (let o of e.allowedParams) {
-            let e = I(o.name, n);
-            void 0 !== e ? M(r, e.name, B(t, e)) : M(r, o.name, B(t, o));
+            let e = $(o.name, n);
+            void 0 !== e ? _(r, e.name, B(t, e)) : _(r, o.name, B(t, o));
           }
           return e.apply(
             Object.assign(Object.assign({}, t), { variableScopes: r }),
@@ -2622,7 +2561,7 @@
             D.get(e)
           );
         }
-        function _(e, t) {
+        function M(e, t) {
           if (Array.isArray(e) && 0 === e.length) return X("item()*")([], null);
           if (t)
             try {
@@ -2640,7 +2579,7 @@
             X(`${o}${a}`)(e, null)
           );
         }
-        function M(e, t, n) {
+        function _(e, t, n) {
           e[e.length - 1].set(t, n);
         }
         function L(e) {
@@ -2648,7 +2587,7 @@
           for (let n of e) for (let [e, r] of n) t[e] = r;
           return t;
         }
-        function U(e, t) {
+        function A(e, t) {
           let n;
           return (
             (n =
@@ -2658,7 +2597,7 @@
             n
           );
         }
-        function A(e, t) {
+        function U(e, t) {
           let n;
           return (
             (n = t.namespace
@@ -2734,7 +2673,7 @@
                     {
                       currentContext: e,
                       namespaceResolver: n,
-                      functionNameResolver: c.functionNameResolver,
+                      functionNameResolver: u.functionNameResolver,
                     },
                   ),
             )
@@ -2754,7 +2693,7 @@
               {
                 currentContext: e,
                 namespaceResolver: n,
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             ).join(o);
           }
@@ -2782,15 +2721,15 @@
               {
                 currentContext: e,
                 namespaceResolver: (0, p.mkResolver)(t.namespaces),
-                functionNameResolver: c.functionNameResolver,
+                functionNameResolver: u.functionNameResolver,
               },
             );
-            return (1 !== r.length || n || (r = r[0]), _(r, t.as));
+            return (1 !== r.length || n || (r = r[0]), M(r, t.as));
           }
           return null == t.content
             ? ""
             : t.as
-              ? _(
+              ? M(
                   (function (e, t) {
                     let n = [];
                     return (
@@ -2833,7 +2772,7 @@
             );
           });
         }
-        (0, c.registerFunctions)();
+        (0, u.registerFunctions)();
       },
       594(e) {
         "use strict";
@@ -2843,10 +2782,6 @@
         "use strict";
         e.exports = require("slimdom");
       },
-      896(e) {
-        "use strict";
-        e.exports = require("fs");
-      },
       16(e) {
         "use strict";
         e.exports = require("url");
@@ -2858,6 +2793,6 @@
       if (void 0 !== o) return o.exports;
       var a = (t[r] = { exports: {} });
       return (e[r].call(a.exports, a, a.exports, n), a.exports);
-    })(901);
+    })(882);
   module.exports = n.transform;
 })();
diff --git a/src/util.ts b/src/util.ts
index 781f68e..1b26d5a 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -18,24 +18,11 @@
  * <https://www.gnu.org/licenses/>.
  */
 
-import { fileURLToPath, resolve } from "url";
-import { readFileSync } from "fs";
 import { DynamicContext } from "./definitions";
-import * as slimdom from "slimdom";
 
 export function urlToDom(context: DynamicContext, url: string) {
   const absoluteURL = context.inputURL
-    ? resolve(context.inputURL.toString(), url)
+    ? new URL(url, context.inputURL.toString()).toString()
     : url;
-
-  if (absoluteURL.startsWith("file:")) {
-    return slimdom.parseXmlDocument(
-      readFileSync(fileURLToPath(new URL(absoluteURL))).toString(),
-    );
-  } else {
-    /** How to do async with fontoxpath? */
-    // const response = await fetch(absoluteURL);
-    // return slimdom.parseXmlDocument(response.body.toString());
-    return undefined;
-  }
+  return context.readDocument(absoluteURL);
 }
diff --git a/src/xjslt.ts b/src/xjslt.ts
index 379cd87..aba97dd 100644
--- a/src/xjslt.ts
+++ b/src/xjslt.ts
@@ -1019,11 +1019,16 @@ export function attribute(
 ) {
   const resolver = mkResolver(data.namespaces);
   const name = evaluateAttributeValueTemplate(context, data.name, resolver);
-  const [ns, _] = determineNamespace(
-    name,
+  const explicitNamespace = evaluateAttributeValueTemplate(
+    context,
+    data.namespace,
     resolver,
-    evaluateAttributeValueTemplate(context, data.namespace, resolver),
   );
+  // Unprefixed attribute names are in no namespace per XML Namespaces spec —
+  // the default namespace does not apply to attributes.
+  const [ns, _] = name.includes(":")
+    ? determineNamespace(name, resolver, explicitNamespace)
+    : [explicitNamespace, name];
   const value = constructSimpleContent(
     context,
     data.select || func,
diff --git a/test/attribute-namespace.spec.ts b/test/attribute-namespace.spec.ts
new file mode 100644
index 0000000..6e753d1
--- /dev/null
+++ b/test/attribute-namespace.spec.ts
@@ -0,0 +1,24 @@
+import { compile } from "../src/compile";
+import * as slimdom from "slimdom";
+import { evaluateXPathToNodes } from "fontoxpath";
+
+test("xsl:attribute unprefixed name gets no namespace even with default namespace in scope", async () => {
+  const xslt = slimdom.parseXmlDocument(`
+    <xsl:stylesheet
+      version="1.0"
+      xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+      xmlns="http://www.w3.org/1999/xhtml">
+      <xsl:template match="/">
+        <xsl:element name="p">
+          <xsl:attribute name="class">foo</xsl:attribute>
+        </xsl:element>
+      </xsl:template>
+    </xsl:stylesheet>`);
+  const transform = await compile(xslt);
+  const result = transform(slimdom.parseXmlDocument("<root/>")).get(
+    "#default",
+  ).document;
+  const p = evaluateXPathToNodes("/p", result)[0] as slimdom.Element;
+  expect(p.getAttribute("class")).toEqual("foo");
+  expect(p.getAttributeNS("http://www.w3.org/1999/xhtml", "class")).toBeNull();
+});
diff --git a/test/suite.fail.ts b/test/suite.fail.ts
index 69c27af..6a9a904 100644
--- a/test/suite.fail.ts
+++ b/test/suite.fail.ts
@@ -1188,7 +1188,6 @@ export const KNOWN_SPEC_FAILURES = [
   "namespace-3201",
   "namespace-3203",
   "namespace-3301",
-  "namespace-3306",
   "namespace-3308",
   "namespace-3309",
   "namespace-3314",
diff --git a/test/suite.spec.ts b/test/suite.spec.ts
index 765b112..7f90849 100644
--- a/test/suite.spec.ts
+++ b/test/suite.spec.ts
@@ -19,7 +19,7 @@
  */
 
 import { log } from "console";
-import { buildStylesheet } from "../src/compile";
+import { compileFromPathSync } from "../src/compile";
 import * as slimdom from "slimdom";
 import * as path from "path";
 import {
@@ -167,44 +167,54 @@ function checkResult(rootDir, node, thunk: () => Map<string, OutputResult>) {
   if (node.localName == "all-of") {
     return () => {
       for (let childNode of evaluateXPathToNodes("./*", node)) {
-        checkResult(rootDir, childNode, thunk)();
+        const fn = checkResult(rootDir, childNode, thunk);
+        fn();
       }
     };
   } else if (node.localName === "any-of") {
     return () => {
-      let lastCheck;
+      let lastFn: () => void | undefined;
       for (let childNode of evaluateXPathToNodes("./*", node)) {
         /* hack to work with any of these results */
+        const fn = checkResult(rootDir, childNode, thunk);
         try {
-          lastCheck = checkResult(rootDir, childNode, thunk);
-          lastCheck();
+          fn();
+          // If success, we are good.
           return;
-        } catch (err) {}
+        } catch (err) {
+          // If errored, keep track of lastFn that errored so that we
+          // can throw the error below.
+          lastFn = fn;
+        }
       }
-      lastCheck();
+      if (lastFn) lastFn();
     };
   } else if (node.localName === "assert-xml") {
     return () => {
-      const dom = thunk().get("#default").document;
+      const tmp = thunk();
+      const dom = tmp.get("#default").document;
       checkAssertXml(rootDir, node, dom);
     };
   } else if (node.localName === "assert") {
     return () => {
       const assert = evaluateXPathToString(".", node);
+      const tmp = thunk();
       expect(
-        evaluateXPathToBoolean(assert, thunk().get("#default").document),
+        evaluateXPathToBoolean(assert, tmp.get("#default").document),
       ).toBeTruthy();
     };
   } else if (node.localName === "assert-count") {
     return () => {
       const count = evaluateXPathToNumber(".", node);
+      const tmp = thunk();
       expect(
-        evaluateXPathToNumber("count(.)", thunk().get("#default").document),
+        evaluateXPathToNumber("count(.)", tmp.get("#default").document),
       ).toEqual(count);
     };
   } else if (node.localName === "serialization-matches") {
     return () => {
-      expect(serialize(thunk().get("#default") as OutputResult)).toXSMatch(
+      const tmp = thunk();
+      expect(serialize(tmp.get("#default") as OutputResult)).toXSMatch(
         evaluateXPathToString(".", node),
       );
     };
@@ -317,7 +327,7 @@ for (let testSet of evaluateXPath("catalog/test-set/@file", testSetDom)) {
               rootDir,
               evaluateXPathToNodes("./*", resultNode)[0],
               () => {
-                const transform = buildStylesheet(stylesheetFile);
+                const transform = compileFromPathSync(stylesheetFile);
                 return transform(environment || new slimdom.Document(), {
                   inputURL: inputURL,
                   initialMode: initialMode,
diff --git a/test/xjslt.spec.ts b/test/xjslt.spec.ts
index d107b78..1b5d4b7 100644
--- a/test/xjslt.spec.ts
+++ b/test/xjslt.spec.ts
@@ -32,7 +32,8 @@ import {
   dedupGenerator,
 } from "../src/xjslt";
 import {
-  buildStylesheet,
+  compileFromPath,
+  compile,
   compileAvtRaw,
   compileSequenceConstructorNode,
   compileTopLevelNode,
@@ -51,7 +52,8 @@ import { evaluateXPathToString, evaluateXPathToNodes } from "fontoxpath";
 import { generate } from "astring";
 import { Parser } from "acorn";
 import { tmpdir } from "os";
-import { readFileSync, writeFileSync, unlinkSync } from "fs";
+import { readFileSync } from "fs";
+import { readFile, writeFile, unlink } from "fs/promises";
 import { expect } from "@jest/globals";
 import { toBeEquivalentDom } from "./matchers";
 import { OutputDefinition } from "../src/definitions";
@@ -70,16 +72,16 @@ declare module "expect" {
 }
 const serializer = new slimdom.XMLSerializer();
 
-function makeSimpleTransform(match: string, template: string) {
+async function makeSimpleTransform(match: string, template: string) {
   return makeTransform(`
 <xsl:template match="${match}">
 ${template}
 </xsl:template>`);
 }
 
-function makeTransform(body: string) {
+async function makeTransform(body: string) {
   const tempfile = path.join(tmpdir(), "temp.xsl");
-  writeFileSync(
+  await writeFile(
     tempfile,
     `<xsl:stylesheet
 version="1.0"
@@ -90,8 +92,8 @@ xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 ${body}
 </xsl:stylesheet>`,
   );
-  const transform = buildStylesheet(tempfile);
-  unlinkSync(tempfile);
+  const transform = await compileFromPath(tempfile);
+  await unlink(tempfile);
   return transform;
 }
 
@@ -341,18 +343,119 @@ test("compileTemplateNode", () => {
   );
 });
 
-test("compileStylesheetNode", () => {
-  const transform = buildStylesheet(`${__dirname}/simple2.xslt`);
+test("compileStylesheetNode", async () => {
+  const transform = await compileFromPath(`${__dirname}/simple2.xslt`);
   expect(
     slimdom.serializeToWellFormedString(
       transform(
         slimdom.parseXmlDocument(
-          readFileSync(`${__dirname}/simple.xml`, "utf-8"),
+          await readFile(`${__dirname}/simple.xml`, "utf-8"),
         ),
-        new slimdom.Document(),
       ).get("#default").document,
     ),
-  ).toEqual(readFileSync(`${__dirname}/simple2.out`, "utf-8"));
+  ).toEqual(await readFile(`${__dirname}/simple2.out`, "utf-8"));
+});
+
+test("compile", async () => {
+  const xslt = slimdom.parseXmlDocument(
+    await readFile(`${__dirname}/simple2.xslt`, "utf-8"),
+  );
+  const transform = await compile(xslt);
+  expect(
+    slimdom.serializeToWellFormedString(
+      transform(
+        slimdom.parseXmlDocument(
+          await readFile(`${__dirname}/simple.xml`, "utf-8"),
+        ),
+      ).get("#default").document,
+    ),
+  ).toEqual(await readFile(`${__dirname}/simple2.out`, "utf-8"));
+});
+
+test("compile with readDocument for xsl:include", async () => {
+  const included = slimdom.parseXmlDocument(`
+    <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+      <xsl:template match="item">
+        <found><xsl:value-of select="."/></found>
+      </xsl:template>
+    </xsl:stylesheet>`);
+
+  const xslt = slimdom.parseXmlDocument(`
+    <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+      <xsl:include href="included.xsl"/>
+      <xsl:template match="/">
+        <xsl:apply-templates select="/root/item"/>
+      </xsl:template>
+    </xsl:stylesheet>`);
+
+  const readDocument = (uri: string) => {
+    if (uri === "included.xsl") return included;
+    throw new Error(`Unexpected URI: ${uri}`);
+  };
+
+  const transform = await compile(xslt, readDocument);
+  const result = slimdom.serializeToWellFormedString(
+    transform(slimdom.parseXmlDocument("<root><item>hello</item></root>")).get(
+      "#default",
+    ).document,
+  );
+  expect(result).toEqual("<found>hello</found>");
+});
+
+test("compile with readDocument for xsl:import", async () => {
+  const imported = slimdom.parseXmlDocument(`
+    <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+      <xsl:template match="item">
+        <base><xsl:value-of select="."/></base>
+      </xsl:template>
+    </xsl:stylesheet>`);
+
+  const xslt = slimdom.parseXmlDocument(`
+    <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+      <xsl:import href="base.xsl"/>
+      <xsl:template match="/">
+        <xsl:apply-templates select="/root/item"/>
+      </xsl:template>
+    </xsl:stylesheet>`);
+
+  const readDocument = (uri: string) => {
+    if (uri === "base.xsl") return imported;
+    throw new Error(`Unexpected URI: ${uri}`);
+  };
+
+  const transform = await compile(xslt, readDocument);
+  const result = slimdom.serializeToWellFormedString(
+    transform(slimdom.parseXmlDocument("<root><item>world</item></root>")).get(
+      "#default",
+    ).document,
+  );
+  expect(result).toEqual("<base>world</base>");
+});
+
+test("compile with readDocument for runtime doc()", async () => {
+  const docs = new Map([
+    ["data.xml", slimdom.parseXmlDocument("<data><value>42</value></data>")],
+  ]);
+
+  const xslt = slimdom.parseXmlDocument(`
+    <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+      <xsl:template match="/">
+        <result><xsl:value-of select="doc('data.xml')/data/value"/></result>
+      </xsl:template>
+    </xsl:stylesheet>`);
+
+  const readDocument = (uri: string) => {
+    if (docs.has(uri)) return docs.get(uri);
+    throw new Error(`Unexpected URI: ${uri}`);
+  };
+
+  const transform = await compile(xslt, readDocument);
+  const result = slimdom.serializeToWellFormedString(
+    transform(slimdom.parseXmlDocument("<root/>"), { readDocument }).get(
+      "#default",
+    ).document,
+  );
+  expect(result).toEqual("<result>42</result>");
 });
 
 test("evaluateAttributeValueTemplate", () => {
@@ -370,6 +473,7 @@ test("evaluateAttributeValueTemplate", () => {
     inputURL: new URL("file:///fake.xml"),
     keys: new Map(),
     patternMatchCache: new Map(),
+    readDocument: (str) => new slimdom.Document(),
     ruleTree: { results: [] },
     nonRuleTemplateIndexes: [],
     nonRuleTemplates: [],
@@ -393,60 +497,52 @@ test("evaluateAttributeValueTemplate", () => {
   ).toEqual("");
 });
 
-test("elementNode", () => {
-  const transform = makeSimpleTransform(
+test("elementNode", async () => {
+  const transform = await makeSimpleTransform(
     "//Author",
     "<xsl:element name='test-{local-name()}'>Hi!</xsl:element>",
   );
-  const results = transform(document, new slimdom.Document()).get(
-    "#default",
-  ).document;
+  const results = transform(document).get("#default").document;
   expect(evaluateXPathToString("/root/test-Author[1]/text()", results)).toEqual(
     "Hi!",
   );
 });
 
-test("attributeNode", () => {
-  const transform = makeSimpleTransform(
+test("attributeNode", async () => {
+  const transform = await makeSimpleTransform(
     "//Author",
     "<test><xsl:attribute name='test-{local-name()}'><xsl:value-of select='text()'/></xsl:attribute></test>",
   );
-  const results = transform(document, new slimdom.Document()).get(
-    "#default",
-  ).document;
+  const results = transform(document).get("#default").document;
   expect(evaluateXPathToString("/root/test[1]/@test-Author", results)).toEqual(
     "Mr. Foo",
   );
 });
 
-test("literalElementAttributeEvaluation", () => {
-  const transform = makeSimpleTransform(
+test("literalElementAttributeEvaluation", async () => {
+  const transform = await makeSimpleTransform(
     "//Author",
     "<test name='test-{local-name()}'><xsl:value-of select='text()'/></test>",
   );
-  const results = transform(document, new slimdom.Document()).get(
-    "#default",
-  ).document;
+  const results = transform(document).get("#default").document;
   expect(
     evaluateXPathToString("/root/test[@name='test-Author'][1]", results),
   ).toEqual("Mr. Foo");
 });
 
-test("variableShadowing", () => {
-  const transform = makeSimpleTransform(
+test("variableShadowing", async () => {
+  const transform = await makeSimpleTransform(
     "//Author",
     "<test><xsl:variable name='test' select='text()'/><xsl:value-of select='$test'/></test>",
   );
-  const results = transform(document, new slimdom.Document()).get(
-    "#default",
-  ).document;
+  const results = transform(document).get("#default").document;
   expect(evaluateXPathToString("/root/test[1]/text()", results)).toEqual(
     "Mr. Foo",
   );
 });
 
-test("call with param", () => {
-  const transform = makeTransform(
+test("call with param", async () => {
+  const transform = await makeTransform(
     `
   <xsl:template name="temp">
     <xsl:param name="foo">default</xsl:param>
@@ -465,8 +561,8 @@ test("call with param", () => {
   );
 });
 
-test("param shadowed by variable", () => {
-  const transform = makeTransform(
+test("param shadowed by variable", async () => {
+  const transform = await makeTransform(
     `
   <xsl:template name="temp">
     <xsl:param name="foo">default</xsl:param>
@@ -486,8 +582,8 @@ test("param shadowed by variable", () => {
   );
 });
 
-test("toplevel param", () => {
-  const transform = makeTransform(
+test("toplevel param", async () => {
+  const transform = await makeTransform(
     `
     <xsl:param name="foo">toplevel</xsl:param>
   <xsl:template name="temp">
@@ -504,8 +600,8 @@ test("toplevel param", () => {
   );
 });
 
-test("call with param defaults", () => {
-  const transform = makeTransform(
+test("call with param defaults", async () => {
+  const transform = await makeTransform(
     `
   <xsl:template name="temp">
     <xsl:param name="foo">default</xsl:param>
@@ -523,8 +619,8 @@ test("call with param defaults", () => {
   );
 });
 
-test("template mode", () => {
-  const transform = makeTransform(
+test("template mode", async () => {
+  const transform = await makeTransform(
     `
   <xsl:template match="Author" mode="foo">
     FOO <xsl:value-of select="."/>
@@ -543,8 +639,8 @@ test("template mode", () => {
   expect(str).toMatch(/.*FOO Mr. Bar/);
 });
 
-test("text node", () => {
-  const transform = makeSimpleTransform(
+test("text node", async () => {
+  const transform = await makeSimpleTransform(
     "//Author",
     `<li><xsl:text>
 -</xsl:text><xsl:value-of select="."/></li>`,
@@ -644,6 +740,7 @@ test("buildNode", () => {
     inputURL: new URL("file:///fake.xml"),
     keys: new Map(),
     patternMatchCache: new Map(),
+    readDocument: (str) => new slimdom.Document(),
     ruleTree: { results: [] },
     nonRuleTemplateIndexes: [],
     nonRuleTemplates: [],
@@ -687,6 +784,7 @@ test("buildAttributeNode", () => {
     inputURL: new URL("file:///fake.xml"),
     keys: new Map(),
     patternMatchCache: new Map(),
+    readDocument: (str) => new slimdom.Document(),
     ruleTree: { results: [] },
     nonRuleTemplateIndexes: [],
     nonRuleTemplates: [],